1598770020
Racial disparities in police stops and searches
ABSTRACT
This report aims to investigate whether the police force is racially biased towards White individuals, compared to those of minority race and ethnicities such as Black or Hispanic. I analyzed the data from the Stanford Open Policing Project, who collected standardized data on police stops in Philadelphia, Pennsylvania, between 2013 and 2017. I assessed biased decisions made by the police based on examining the rate at which the police searched the stopped drivers and whether these searches were successful in finding contraband. The raw data contains information on the driver’s age, sex, race/ethnicity, the location of the stop, and whether the police searched them.
INTRODUCTION
Racial bias in the police force has been a controversial topic for decades. However, the recent news of police stops and searches have led to violence against innocent Black Americans. For example, George Floyd, a 46-year-old unarmed Black American man, was killed by a police officer for allegedly using a counterfeit bill. This event sparked protests and outrage worldwide, due to the discrimination in policing against Black people.
Assessing data of the rate of stops and searches could provide evidence on whether there is racial discrimination against minorities. Another strategy would be assessing the proportion of searches that successfully identify contraband. If the proportion of successful searches of minorities are less than those of Whites, this could suggest that officers are searching minorities based on less evidence. To narrow the analysis scope, I subsetted the data to focus on vehicular police stops in 2017.
DATASET EXPLANATION
In this data, 1,756,587 police stops occurred between January 1, 2014, and December 31, 2017, in Philadelphia, Pennsylvania. 294,060 of these police stops were vehicular police stops in 2017.
#ds-in-the-real-world #blacklivesmatter #editors-pick #data-science #statistics #data analysis
What is GEEK
Buddha Community
1637911881
Tạo Bộ lọc Sản phẩm và Tìm kiếm Sử dụng HTML, CSS & Javascript
Chào mừng đến với hướng dẫn hôm nay. Trong hướng dẫn hôm nay, chúng ta sẽ học cách xây dựng bộ lọc và tìm kiếm sản phẩm. Để tạo dự án này, chúng ta cần HTML, CSS và Javascript. Vì đây là một dự án khá nâng cao, tôi sẽ không giới thiệu nó cho người mới bắt đầu sử dụng javascript. Nếu bạn là một trung cấp hoặc chuyên gia về javascript, bạn chắc chắn có thể tiếp tục và tạo ra cái này.
Hãy để chúng tôi có một cái nhìn tổng quan về dự án này thực sự là gì. Dự án bao gồm một loạt các thẻ sản phẩm. Mỗi thẻ này có tên, giá và danh mục được gán cho chúng. Phía trên các thẻ này, có một thanh tìm kiếm nơi người dùng có thể tìm kiếm một sản phẩm dựa trên tên của nó.
Bên dưới thanh tìm kiếm, có một nhóm các nút. Mỗi nút này có một tên danh mục trên đó. Khi người dùng nhấp vào bất kỳ nút nào trong số các nút này, các sản phẩm tương ứng với danh mục cụ thể đó sẽ được hiển thị.
Cấu trúc thư mục dự án:
Bây giờ trước tiên chúng ta hãy tạo cấu trúc thư mục dự án để chúng ta có thể bắt đầu viết mã. Chúng tôi bắt đầu bằng cách tạo một thư mục dự án có tên - 'Bộ lọc và Tìm kiếm Sản phẩm'. Bên trong thư mục này, chúng tôi tạo ba tệp. Đầu tiên là index.html, thứ hai là style.cssvà thứ ba là script.js. Các tệp này lần lượt là tài liệu HTML, biểu định kiểu và tệp tập lệnh.
HTML:
Chúng tôi bắt đầu với mã HTML. Trước tiên, hãy sao chép đoạn mã dưới đây và dán vào tệp HTML của bạn.
<!DOCTYPE html>
<html lang="en">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Product Filter And Search</title>
<!-- Google Font -->
<link
href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;500&display=swap"
rel="stylesheet"
/>
<!-- Stylesheet -->
<link rel="stylesheet" href="style.css" />
</head>
<body>
<div class="wrapper">
<div id="search-container">
<input
type="search"
id="search-input"
placeholder="Search product name here.."
/>
<button id="search">Search</button>
</div>
<div id="buttons">
<button class="button-value" onclick="filterProduct('all')">All</button>
<button class="button-value" onclick="filterProduct('Topwear')">
Topwear
</button>
<button class="button-value" onclick="filterProduct('Bottomwear')">
Bottomwear
</button>
<button class="button-value" onclick="filterProduct('Jacket')">
Jacket
</button>
<button class="button-value" onclick="filterProduct('Watch')">
Watch
</button>
</div>
<div id="products"></div>
</div>
<!-- Script -->
<script src="script.js"></script>
</body>
</html>CSS:
Tiếp theo để thêm kiểu cho dự án này, chúng tôi sử dụng CSS. Bây giờ sao chép mã bên dưới và dán nó vào tệp CSS của bạn.
* {
padding: 0;
margin: 0;
box-sizing: border-box;
border: none;
outline: none;
font-family: "Poppins", sans-serif;
}
body {
background-color: #f5f8ff;
}
.wrapper {
width: 95%;
margin: 0 auto;
}
#search-container {
margin: 1em 0;
}
#search-container input {
background-color: transparent;
width: 40%;
border-bottom: 2px solid #110f29;
padding: 1em 0.3em;
}
#search-container input:focus {
border-bottom-color: #6759ff;
}
#search-container button {
padding: 1em 2em;
margin-left: 1em;
background-color: #6759ff;
color: #ffffff;
border-radius: 5px;
margin-top: 0.5em;
}
.button-value {
border: 2px solid #6759ff;
padding: 1em 2.2em;
border-radius: 3em;
background-color: transparent;
color: #6759ff;
cursor: pointer;
}
.active {
background-color: #6759ff;
color: #ffffff;
}
#products {
display: grid;
grid-template-columns: auto auto auto;
grid-column-gap: 1.5em;
padding: 2em 0;
}
.card {
background-color: #ffffff;
max-width: 18em;
margin-top: 1em;
padding: 1em;
border-radius: 5px;
box-shadow: 1em 2em 2.5em rgba(1, 2, 68, 0.08);
}
.image-container {
text-align: center;
}
img {
max-width: 100%;
object-fit: contain;
height: 15em;
}
.container {
padding-top: 1em;
color: #110f29;
}
.container h5 {
font-weight: 500;
}
.hide {
display: none;
}
@media screen and (max-width: 720px) {
img {
max-width: 100%;
object-fit: contain;
height: 10em;
}
.card {
max-width: 10em;
margin-top: 1em;
}
#products {
grid-template-columns: auto auto;
grid-column-gap: 1em;
}
}Javascript:
Cuối cùng, chúng ta cần thêm chức năng vào bộ lọc và cũng thực hiện chức năng tìm kiếm. Để làm cho nó hoạt động, chúng tôi thêm javascript. Sao chép mã được cung cấp bên dưới và dán vào tệp javascript của bạn.
let products = {
data: [
{
productName: "Regular White T-Shirt",
category: "Topwear",
price: "30",
image: "white-tshirt.jpg",
},
{
productName: "Beige Short Skirt",
category: "Bottomwear",
price: "49",
image: "short-skirt.jpg",
},
{
productName: "Sporty SmartWatch",
category: "Watch",
price: "99",
image: "sporty-smartwatch.jpg",
},
{
productName: "Basic Knitted Top",
category: "Topwear",
price: "29",
image: "knitted-top.jpg",
},
{
productName: "Black Leather Jacket",
category: "Jacket",
price: "129",
image: "black-leather-jacket.jpg",
},
{
productName: "Stylish Pink Trousers",
category: "Bottomwear",
price: "89",
image: "pink-trousers.jpg",
},
{
productName: "Brown Men's Jacket",
category: "Jacket",
price: "189",
image: "brown-jacket.jpg",
},
{
productName: "Comfy Gray Pants",
category: "Bottomwear",
price: "49",
image: "comfy-gray-pants.jpg",
},
],
};
for (let i of products.data) {
//Create Card
let card = document.createElement("div");
//Card should have category and should stay hidden initially
card.classList.add("card", i.category, "hide");
//image div
let imgContainer = document.createElement("div");
imgContainer.classList.add("image-container");
//img tag
let image = document.createElement("img");
image.setAttribute("src", i.image);
imgContainer.appendChild(image);
card.appendChild(imgContainer);
//container
let container = document.createElement("div");
container.classList.add("container");
//product name
let name = document.createElement("h5");
name.classList.add("product-name");
name.innerText = i.productName.toUpperCase();
container.appendChild(name);
//price
let price = document.createElement("h6");
price.innerText = "$" + i.price;
container.appendChild(price);
card.appendChild(container);
document.getElementById("products").appendChild(card);
}
//parameter passed from button (Parameter same as category)
function filterProduct(value) {
//Button class code
let buttons = document.querySelectorAll(".button-value");
buttons.forEach((button) => {
//check if value equals innerText
if (value.toUpperCase() == button.innerText.toUpperCase()) {
button.classList.add("active");
} else {
button.classList.remove("active");
}
});
//select all cards
let elements = document.querySelectorAll(".card");
//loop through all cards
elements.forEach((element) => {
//display all cards on 'all' button click
if (value == "all") {
element.classList.remove("hide");
} else {
//Check if element contains category class
if (element.classList.contains(value)) {
//display element based on category
element.classList.remove("hide");
} else {
//hide other elements
element.classList.add("hide");
}
}
});
}
//Search button click
document.getElementById("search").addEventListener("click", () => {
//initializations
let searchInput = document.getElementById("search-input").value;
let elements = document.querySelectorAll(".product-name");
let cards = document.querySelectorAll(".card");
//loop through all elements
elements.forEach((element, index) => {
//check if text includes the search value
if (element.innerText.includes(searchInput.toUpperCase())) {
//display matching card
cards[index].classList.remove("hide");
} else {
//hide others
cards[index].classList.add("hide");
}
});
});
//Initially display all products
window.onload = () => {
filterProduct("all");
};Bộ lọc và tìm kiếm sản phẩm của bạn hiện đã sẵn sàng. Tôi hy vọng bạn thích hướng dẫn.
1637913836
Создание фильтров поиска и товаров с помощью Javascript
Добро пожаловать в сегодняшнее руководство. В сегодняшнем руководстве мы узнаем, как создавать фильтры и искать товары. Для создания этого проекта нам понадобятся HTML, CSS и Javascript. Поскольку это довольно продвинутый проект, я бы не рекомендовал его новичку в javascript. Если вы средний уровень или эксперт в javascript, вы определенно можете сделать это.
Давайте посмотрим, что это за проект на самом деле. В проект входит серия карточек продуктов. У каждой из этих карт есть название, цена и категория. Над этими тегами находится панель поиска, где пользователи могут искать продукт по его названию.
Под панелью поиска находится группа кнопок. На каждой из этих кнопок есть название категории. Когда пользователь нажимает любую из этих кнопок, будут отображаться продукты, соответствующие этой конкретной категории.
Структура папок проекта:
Теперь давайте сначала создадим структуру каталогов проекта, чтобы мы могли начать кодирование. Начнем с создания папки проекта с названием «Фильтры и поиск продуктов». Внутри этой папки мы создаем три файла. Первый есть index.html, второй есть style.cssи третий есть script.js. Эти файлы представляют собой HTML-документы, таблицы стилей и файлы сценариев соответственно.
HTML:
Начнем с HTML-кода. Сначала скопируйте приведенный ниже код и вставьте его в свой HTML-файл.
<!DOCTYPE html>
<html lang="en">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Product Filter And Search</title>
<!-- Google Font -->
<link
href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;500&display=swap"
rel="stylesheet"
/>
<!-- Stylesheet -->
<link rel="stylesheet" href="style.css" />
</head>
<body>
<div class="wrapper">
<div id="search-container">
<input
type="search"
id="search-input"
placeholder="Search product name here.."
/>
<button id="search">Search</button>
</div>
<div id="buttons">
<button class="button-value" onclick="filterProduct('all')">All</button>
<button class="button-value" onclick="filterProduct('Topwear')">
Topwear
</button>
<button class="button-value" onclick="filterProduct('Bottomwear')">
Bottomwear
</button>
<button class="button-value" onclick="filterProduct('Jacket')">
Jacket
</button>
<button class="button-value" onclick="filterProduct('Watch')">
Watch
</button>
</div>
<div id="products"></div>
</div>
<!-- Script -->
<script src="script.js"></script>
</body>
</html>CSS:
Далее, чтобы добавить стили в этот проект, мы используем CSS. Теперь скопируйте приведенный ниже код и вставьте его в свой файл CSS.
* {
padding: 0;
margin: 0;
box-sizing: border-box;
border: none;
outline: none;
font-family: "Poppins", sans-serif;
}
body {
background-color: #f5f8ff;
}
.wrapper {
width: 95%;
margin: 0 auto;
}
#search-container {
margin: 1em 0;
}
#search-container input {
background-color: transparent;
width: 40%;
border-bottom: 2px solid #110f29;
padding: 1em 0.3em;
}
#search-container input:focus {
border-bottom-color: #6759ff;
}
#search-container button {
padding: 1em 2em;
margin-left: 1em;
background-color: #6759ff;
color: #ffffff;
border-radius: 5px;
margin-top: 0.5em;
}
.button-value {
border: 2px solid #6759ff;
padding: 1em 2.2em;
border-radius: 3em;
background-color: transparent;
color: #6759ff;
cursor: pointer;
}
.active {
background-color: #6759ff;
color: #ffffff;
}
#products {
display: grid;
grid-template-columns: auto auto auto;
grid-column-gap: 1.5em;
padding: 2em 0;
}
.card {
background-color: #ffffff;
max-width: 18em;
margin-top: 1em;
padding: 1em;
border-radius: 5px;
box-shadow: 1em 2em 2.5em rgba(1, 2, 68, 0.08);
}
.image-container {
text-align: center;
}
img {
max-width: 100%;
object-fit: contain;
height: 15em;
}
.container {
padding-top: 1em;
color: #110f29;
}
.container h5 {
font-weight: 500;
}
.hide {
display: none;
}
@media screen and (max-width: 720px) {
img {
max-width: 100%;
object-fit: contain;
height: 10em;
}
.card {
max-width: 10em;
margin-top: 1em;
}
#products {
grid-template-columns: auto auto;
grid-column-gap: 1em;
}
}Javascript:
Наконец, нам нужно добавить функциональность к фильтру, а также реализовать функцию поиска. Чтобы он заработал, мы добавляем javascript. Скопируйте приведенный ниже код и вставьте его в свой файл javascript.
let products = {
data: [
{
productName: "Regular White T-Shirt",
category: "Topwear",
price: "30",
image: "white-tshirt.jpg",
},
{
productName: "Beige Short Skirt",
category: "Bottomwear",
price: "49",
image: "short-skirt.jpg",
},
{
productName: "Sporty SmartWatch",
category: "Watch",
price: "99",
image: "sporty-smartwatch.jpg",
},
{
productName: "Basic Knitted Top",
category: "Topwear",
price: "29",
image: "knitted-top.jpg",
},
{
productName: "Black Leather Jacket",
category: "Jacket",
price: "129",
image: "black-leather-jacket.jpg",
},
{
productName: "Stylish Pink Trousers",
category: "Bottomwear",
price: "89",
image: "pink-trousers.jpg",
},
{
productName: "Brown Men's Jacket",
category: "Jacket",
price: "189",
image: "brown-jacket.jpg",
},
{
productName: "Comfy Gray Pants",
category: "Bottomwear",
price: "49",
image: "comfy-gray-pants.jpg",
},
],
};
for (let i of products.data) {
//Create Card
let card = document.createElement("div");
//Card should have category and should stay hidden initially
card.classList.add("card", i.category, "hide");
//image div
let imgContainer = document.createElement("div");
imgContainer.classList.add("image-container");
//img tag
let image = document.createElement("img");
image.setAttribute("src", i.image);
imgContainer.appendChild(image);
card.appendChild(imgContainer);
//container
let container = document.createElement("div");
container.classList.add("container");
//product name
let name = document.createElement("h5");
name.classList.add("product-name");
name.innerText = i.productName.toUpperCase();
container.appendChild(name);
//price
let price = document.createElement("h6");
price.innerText = "$" + i.price;
container.appendChild(price);
card.appendChild(container);
document.getElementById("products").appendChild(card);
}
//parameter passed from button (Parameter same as category)
function filterProduct(value) {
//Button class code
let buttons = document.querySelectorAll(".button-value");
buttons.forEach((button) => {
//check if value equals innerText
if (value.toUpperCase() == button.innerText.toUpperCase()) {
button.classList.add("active");
} else {
button.classList.remove("active");
}
});
//select all cards
let elements = document.querySelectorAll(".card");
//loop through all cards
elements.forEach((element) => {
//display all cards on 'all' button click
if (value == "all") {
element.classList.remove("hide");
} else {
//Check if element contains category class
if (element.classList.contains(value)) {
//display element based on category
element.classList.remove("hide");
} else {
//hide other elements
element.classList.add("hide");
}
}
});
}
//Search button click
document.getElementById("search").addEventListener("click", () => {
//initializations
let searchInput = document.getElementById("search-input").value;
let elements = document.querySelectorAll(".product-name");
let cards = document.querySelectorAll(".card");
//loop through all elements
elements.forEach((element, index) => {
//check if text includes the search value
if (element.innerText.includes(searchInput.toUpperCase())) {
//display matching card
cards[index].classList.remove("hide");
} else {
//hide others
cards[index].classList.add("hide");
}
});
});
//Initially display all products
window.onload = () => {
filterProduct("all");
};Теперь ваш поиск и фильтр по продукту готовы. Надеюсь, вам понравился урок.
1637931784
Créez des filtres de recherche et de produits à l'aide de Javascript
Bienvenue dans le tutoriel d'aujourd'hui. Dans le didacticiel d'aujourd'hui, nous allons apprendre à créer des filtres et à rechercher des produits. Pour créer ce projet, nous avons besoin de HTML, CSS et Javascript. Comme il s'agit d'un projet assez avancé, je ne le recommanderais pas à un débutant en javascript. Si vous êtes un intermédiaire ou un expert en javascript, vous pouvez certainement aller de l'avant et créer celui-ci.
Ayons un aperçu de ce qu'est réellement ce projet. Le projet comprend une série de fiches produits. Chacune de ces cartes a un nom, un prix et une catégorie qui leur sont attribués. Au-dessus de ces balises, il y a une barre de recherche où les utilisateurs peuvent rechercher un produit en fonction de son nom.
Sous la barre de recherche, il y a un groupe de boutons. Chacun de ces boutons a un nom de catégorie. Lorsque l'utilisateur clique sur l'un de ces boutons, les produits correspondant à cette catégorie particulière seront affichés.
Structure du dossier du projet :
Maintenant, créons d'abord la structure du répertoire du projet afin que nous puissions commencer à coder. Nous commençons par créer un dossier de projet nommé - « Filtres et recherche de produits ». Dans ce dossier, nous créons trois fichiers. Le premier est index.html, le second est style.csset le troisième est script.js. Ces fichiers sont respectivement des documents HTML, des feuilles de style et des fichiers de script.
HTML :
Nous commençons par le code HTML. Tout d'abord, copiez le code ci-dessous et collez-le dans votre fichier HTML.
<!DOCTYPE html>
<html lang="en">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Product Filter And Search</title>
<!-- Google Font -->
<link
href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;500&display=swap"
rel="stylesheet"
/>
<!-- Stylesheet -->
<link rel="stylesheet" href="style.css" />
</head>
<body>
<div class="wrapper">
<div id="search-container">
<input
type="search"
id="search-input"
placeholder="Search product name here.."
/>
<button id="search">Search</button>
</div>
<div id="buttons">
<button class="button-value" onclick="filterProduct('all')">All</button>
<button class="button-value" onclick="filterProduct('Topwear')">
Topwear
</button>
<button class="button-value" onclick="filterProduct('Bottomwear')">
Bottomwear
</button>
<button class="button-value" onclick="filterProduct('Jacket')">
Jacket
</button>
<button class="button-value" onclick="filterProduct('Watch')">
Watch
</button>
</div>
<div id="products"></div>
</div>
<!-- Script -->
<script src="script.js"></script>
</body>
</html>CSS :
Ensuite, pour ajouter des styles à ce projet, nous utilisons CSS. Copiez maintenant le code ci-dessous et collez-le dans votre fichier CSS.
* {
padding: 0;
margin: 0;
box-sizing: border-box;
border: none;
outline: none;
font-family: "Poppins", sans-serif;
}
body {
background-color: #f5f8ff;
}
.wrapper {
width: 95%;
margin: 0 auto;
}
#search-container {
margin: 1em 0;
}
#search-container input {
background-color: transparent;
width: 40%;
border-bottom: 2px solid #110f29;
padding: 1em 0.3em;
}
#search-container input:focus {
border-bottom-color: #6759ff;
}
#search-container button {
padding: 1em 2em;
margin-left: 1em;
background-color: #6759ff;
color: #ffffff;
border-radius: 5px;
margin-top: 0.5em;
}
.button-value {
border: 2px solid #6759ff;
padding: 1em 2.2em;
border-radius: 3em;
background-color: transparent;
color: #6759ff;
cursor: pointer;
}
.active {
background-color: #6759ff;
color: #ffffff;
}
#products {
display: grid;
grid-template-columns: auto auto auto;
grid-column-gap: 1.5em;
padding: 2em 0;
}
.card {
background-color: #ffffff;
max-width: 18em;
margin-top: 1em;
padding: 1em;
border-radius: 5px;
box-shadow: 1em 2em 2.5em rgba(1, 2, 68, 0.08);
}
.image-container {
text-align: center;
}
img {
max-width: 100%;
object-fit: contain;
height: 15em;
}
.container {
padding-top: 1em;
color: #110f29;
}
.container h5 {
font-weight: 500;
}
.hide {
display: none;
}
@media screen and (max-width: 720px) {
img {
max-width: 100%;
object-fit: contain;
height: 10em;
}
.card {
max-width: 10em;
margin-top: 1em;
}
#products {
grid-template-columns: auto auto;
grid-column-gap: 1em;
}
}Javascript :
Enfin, nous devons ajouter des fonctionnalités au filtre et également implémenter la fonction de recherche. Pour que cela fonctionne, nous ajoutons javascript. Copiez le code ci-dessous et collez-le dans votre fichier javascript.
let products = {
data: [
{
productName: "Regular White T-Shirt",
category: "Topwear",
price: "30",
image: "white-tshirt.jpg",
},
{
productName: "Beige Short Skirt",
category: "Bottomwear",
price: "49",
image: "short-skirt.jpg",
},
{
productName: "Sporty SmartWatch",
category: "Watch",
price: "99",
image: "sporty-smartwatch.jpg",
},
{
productName: "Basic Knitted Top",
category: "Topwear",
price: "29",
image: "knitted-top.jpg",
},
{
productName: "Black Leather Jacket",
category: "Jacket",
price: "129",
image: "black-leather-jacket.jpg",
},
{
productName: "Stylish Pink Trousers",
category: "Bottomwear",
price: "89",
image: "pink-trousers.jpg",
},
{
productName: "Brown Men's Jacket",
category: "Jacket",
price: "189",
image: "brown-jacket.jpg",
},
{
productName: "Comfy Gray Pants",
category: "Bottomwear",
price: "49",
image: "comfy-gray-pants.jpg",
},
],
};
for (let i of products.data) {
//Create Card
let card = document.createElement("div");
//Card should have category and should stay hidden initially
card.classList.add("card", i.category, "hide");
//image div
let imgContainer = document.createElement("div");
imgContainer.classList.add("image-container");
//img tag
let image = document.createElement("img");
image.setAttribute("src", i.image);
imgContainer.appendChild(image);
card.appendChild(imgContainer);
//container
let container = document.createElement("div");
container.classList.add("container");
//product name
let name = document.createElement("h5");
name.classList.add("product-name");
name.innerText = i.productName.toUpperCase();
container.appendChild(name);
//price
let price = document.createElement("h6");
price.innerText = "$" + i.price;
container.appendChild(price);
card.appendChild(container);
document.getElementById("products").appendChild(card);
}
//parameter passed from button (Parameter same as category)
function filterProduct(value) {
//Button class code
let buttons = document.querySelectorAll(".button-value");
buttons.forEach((button) => {
//check if value equals innerText
if (value.toUpperCase() == button.innerText.toUpperCase()) {
button.classList.add("active");
} else {
button.classList.remove("active");
}
});
//select all cards
let elements = document.querySelectorAll(".card");
//loop through all cards
elements.forEach((element) => {
//display all cards on 'all' button click
if (value == "all") {
element.classList.remove("hide");
} else {
//Check if element contains category class
if (element.classList.contains(value)) {
//display element based on category
element.classList.remove("hide");
} else {
//hide other elements
element.classList.add("hide");
}
}
});
}
//Search button click
document.getElementById("search").addEventListener("click", () => {
//initializations
let searchInput = document.getElementById("search-input").value;
let elements = document.querySelectorAll(".product-name");
let cards = document.querySelectorAll(".card");
//loop through all elements
elements.forEach((element, index) => {
//check if text includes the search value
if (element.innerText.includes(searchInput.toUpperCase())) {
//display matching card
cards[index].classList.remove("hide");
} else {
//hide others
cards[index].classList.add("hide");
}
});
});
//Initially display all products
window.onload = () => {
filterProduct("all");
};Votre recherche de produits et votre filtre sont maintenant prêts. J'espère que vous avez apprécié le tutoriel.
1637912634
Cree filtros de búsqueda y de productos utilizando Javascript
Bienvenido al tutorial de hoy. En el tutorial de hoy, aprenderemos cómo crear filtros y buscar productos. Para crear este proyecto, necesitamos HTML, CSS y Javascript. Dado que este es un proyecto bastante avanzado, no se lo recomendaría a un principiante de JavaScript. Si eres un intermedio o un experto en javascript, definitivamente puedes seguir adelante y hacer este.
Tengamos una visión general de lo que realmente es este proyecto. El proyecto incluye una serie de fichas de producto. Cada una de estas tarjetas tiene asignado un nombre, precio y categoría. Por encima de estas etiquetas, hay una barra de búsqueda donde los usuarios pueden buscar un producto según su nombre.
Debajo de la barra de búsqueda, hay un grupo de botones. Cada uno de estos botones tiene un nombre de categoría. Cuando el usuario haga clic en cualquiera de estos botones, se mostrarán los productos correspondientes a esa categoría en particular.
Estructura de la carpeta del proyecto:
Ahora, primero creemos la estructura del directorio del proyecto para que podamos comenzar a codificar. Comenzamos creando una carpeta de proyecto llamada - 'Filtros y búsqueda de productos'. Dentro de esta carpeta creamos tres archivos. El primero es index.html, el segundo es style.cssy el tercero es script.js. Estos archivos son documentos HTML, hojas de estilo y archivos de script, respectivamente.
HTML:
Empezamos con el código HTML. Primero, copie el código a continuación y péguelo en su archivo HTML.
<!DOCTYPE html>
<html lang="en">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Product Filter And Search</title>
<!-- Google Font -->
<link
href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;500&display=swap"
rel="stylesheet"
/>
<!-- Stylesheet -->
<link rel="stylesheet" href="style.css" />
</head>
<body>
<div class="wrapper">
<div id="search-container">
<input
type="search"
id="search-input"
placeholder="Search product name here.."
/>
<button id="search">Search</button>
</div>
<div id="buttons">
<button class="button-value" onclick="filterProduct('all')">All</button>
<button class="button-value" onclick="filterProduct('Topwear')">
Topwear
</button>
<button class="button-value" onclick="filterProduct('Bottomwear')">
Bottomwear
</button>
<button class="button-value" onclick="filterProduct('Jacket')">
Jacket
</button>
<button class="button-value" onclick="filterProduct('Watch')">
Watch
</button>
</div>
<div id="products"></div>
</div>
<!-- Script -->
<script src="script.js"></script>
</body>
</html>CSS:
A continuación, para agregar estilos a este proyecto, usamos CSS. Ahora copie el código a continuación y péguelo en su archivo CSS.
* {
padding: 0;
margin: 0;
box-sizing: border-box;
border: none;
outline: none;
font-family: "Poppins", sans-serif;
}
body {
background-color: #f5f8ff;
}
.wrapper {
width: 95%;
margin: 0 auto;
}
#search-container {
margin: 1em 0;
}
#search-container input {
background-color: transparent;
width: 40%;
border-bottom: 2px solid #110f29;
padding: 1em 0.3em;
}
#search-container input:focus {
border-bottom-color: #6759ff;
}
#search-container button {
padding: 1em 2em;
margin-left: 1em;
background-color: #6759ff;
color: #ffffff;
border-radius: 5px;
margin-top: 0.5em;
}
.button-value {
border: 2px solid #6759ff;
padding: 1em 2.2em;
border-radius: 3em;
background-color: transparent;
color: #6759ff;
cursor: pointer;
}
.active {
background-color: #6759ff;
color: #ffffff;
}
#products {
display: grid;
grid-template-columns: auto auto auto;
grid-column-gap: 1.5em;
padding: 2em 0;
}
.card {
background-color: #ffffff;
max-width: 18em;
margin-top: 1em;
padding: 1em;
border-radius: 5px;
box-shadow: 1em 2em 2.5em rgba(1, 2, 68, 0.08);
}
.image-container {
text-align: center;
}
img {
max-width: 100%;
object-fit: contain;
height: 15em;
}
.container {
padding-top: 1em;
color: #110f29;
}
.container h5 {
font-weight: 500;
}
.hide {
display: none;
}
@media screen and (max-width: 720px) {
img {
max-width: 100%;
object-fit: contain;
height: 10em;
}
.card {
max-width: 10em;
margin-top: 1em;
}
#products {
grid-template-columns: auto auto;
grid-column-gap: 1em;
}
}Javascript:
Finalmente, necesitamos agregar funcionalidad al filtro y también implementar la función de búsqueda. Para que funcione, agregamos javascript. Copie el código que se proporciona a continuación y péguelo en su archivo javascript.
let products = {
data: [
{
productName: "Regular White T-Shirt",
category: "Topwear",
price: "30",
image: "white-tshirt.jpg",
},
{
productName: "Beige Short Skirt",
category: "Bottomwear",
price: "49",
image: "short-skirt.jpg",
},
{
productName: "Sporty SmartWatch",
category: "Watch",
price: "99",
image: "sporty-smartwatch.jpg",
},
{
productName: "Basic Knitted Top",
category: "Topwear",
price: "29",
image: "knitted-top.jpg",
},
{
productName: "Black Leather Jacket",
category: "Jacket",
price: "129",
image: "black-leather-jacket.jpg",
},
{
productName: "Stylish Pink Trousers",
category: "Bottomwear",
price: "89",
image: "pink-trousers.jpg",
},
{
productName: "Brown Men's Jacket",
category: "Jacket",
price: "189",
image: "brown-jacket.jpg",
},
{
productName: "Comfy Gray Pants",
category: "Bottomwear",
price: "49",
image: "comfy-gray-pants.jpg",
},
],
};
for (let i of products.data) {
//Create Card
let card = document.createElement("div");
//Card should have category and should stay hidden initially
card.classList.add("card", i.category, "hide");
//image div
let imgContainer = document.createElement("div");
imgContainer.classList.add("image-container");
//img tag
let image = document.createElement("img");
image.setAttribute("src", i.image);
imgContainer.appendChild(image);
card.appendChild(imgContainer);
//container
let container = document.createElement("div");
container.classList.add("container");
//product name
let name = document.createElement("h5");
name.classList.add("product-name");
name.innerText = i.productName.toUpperCase();
container.appendChild(name);
//price
let price = document.createElement("h6");
price.innerText = "$" + i.price;
container.appendChild(price);
card.appendChild(container);
document.getElementById("products").appendChild(card);
}
//parameter passed from button (Parameter same as category)
function filterProduct(value) {
//Button class code
let buttons = document.querySelectorAll(".button-value");
buttons.forEach((button) => {
//check if value equals innerText
if (value.toUpperCase() == button.innerText.toUpperCase()) {
button.classList.add("active");
} else {
button.classList.remove("active");
}
});
//select all cards
let elements = document.querySelectorAll(".card");
//loop through all cards
elements.forEach((element) => {
//display all cards on 'all' button click
if (value == "all") {
element.classList.remove("hide");
} else {
//Check if element contains category class
if (element.classList.contains(value)) {
//display element based on category
element.classList.remove("hide");
} else {
//hide other elements
element.classList.add("hide");
}
}
});
}
//Search button click
document.getElementById("search").addEventListener("click", () => {
//initializations
let searchInput = document.getElementById("search-input").value;
let elements = document.querySelectorAll(".product-name");
let cards = document.querySelectorAll(".card");
//loop through all elements
elements.forEach((element, index) => {
//check if text includes the search value
if (element.innerText.includes(searchInput.toUpperCase())) {
//display matching card
cards[index].classList.remove("hide");
} else {
//hide others
cards[index].classList.add("hide");
}
});
});
//Initially display all products
window.onload = () => {
filterProduct("all");
};Su búsqueda y filtro de productos ya están listos. Espero que hayan disfrutado el tutorial.
1637932920
Erstellen Sie Such- und Produktfilter mit HTML, CSS und Javascript
Willkommen zum heutigen Tutorial. Im heutigen Tutorial erfahren Sie, wie Sie Filter erstellen und nach Produkten suchen. Um dieses Projekt zu erstellen, benötigen wir HTML, CSS und Javascript. Da dies ein ziemlich fortgeschrittenes Projekt ist, würde ich es keinem Javascript-Anfänger empfehlen. Wenn Sie ein Fortgeschrittener oder Experte in Javascript sind, können Sie auf jeden Fall weitermachen und dieses machen.
Lassen Sie uns einen Überblick darüber geben, was dieses Projekt wirklich ist. Das Projekt umfasst eine Reihe von Produktkarten. Jeder dieser Karten ist ein Name, ein Preis und eine Kategorie zugeordnet. Über diesen Tags befindet sich eine Suchleiste, in der Benutzer anhand des Namens nach einem Produkt suchen können.
Unterhalb der Suchleiste befindet sich eine Gruppe von Schaltflächen. Jede dieser Schaltflächen hat einen Kategorienamen. Wenn der Benutzer auf eine dieser Schaltflächen klickt, werden die Produkte angezeigt, die dieser bestimmten Kategorie entsprechen.
Projektordnerstruktur:
Lassen Sie uns nun zunächst die Projektverzeichnisstruktur erstellen, damit wir mit dem Codieren beginnen können. Wir beginnen damit, einen Projektordner mit dem Namen "Filters and Product Search" zu erstellen. In diesem Ordner erstellen wir drei Dateien. Das erste ist index.html, das zweite ist style.cssund das dritte ist script.js. Diese Dateien sind HTML-Dokumente, Stylesheets bzw. Skriptdateien.
HTML-Code:
Wir beginnen mit dem HTML-Code. Kopieren Sie zunächst den folgenden Code und fügen Sie ihn in Ihre HTML-Datei ein.
<!DOCTYPE html>
<html lang="en">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Product Filter And Search</title>
<!-- Google Font -->
<link
href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;500&display=swap"
rel="stylesheet"
/>
<!-- Stylesheet -->
<link rel="stylesheet" href="style.css" />
</head>
<body>
<div class="wrapper">
<div id="search-container">
<input
type="search"
id="search-input"
placeholder="Search product name here.."
/>
<button id="search">Search</button>
</div>
<div id="buttons">
<button class="button-value" onclick="filterProduct('all')">All</button>
<button class="button-value" onclick="filterProduct('Topwear')">
Topwear
</button>
<button class="button-value" onclick="filterProduct('Bottomwear')">
Bottomwear
</button>
<button class="button-value" onclick="filterProduct('Jacket')">
Jacket
</button>
<button class="button-value" onclick="filterProduct('Watch')">
Watch
</button>
</div>
<div id="products"></div>
</div>
<!-- Script -->
<script src="script.js"></script>
</body>
</html>CSS:
Um diesem Projekt Stile hinzuzufügen, verwenden wir CSS. Kopieren Sie nun den folgenden Code und fügen Sie ihn in Ihre CSS-Datei ein.
* {
padding: 0;
margin: 0;
box-sizing: border-box;
border: none;
outline: none;
font-family: "Poppins", sans-serif;
}
body {
background-color: #f5f8ff;
}
.wrapper {
width: 95%;
margin: 0 auto;
}
#search-container {
margin: 1em 0;
}
#search-container input {
background-color: transparent;
width: 40%;
border-bottom: 2px solid #110f29;
padding: 1em 0.3em;
}
#search-container input:focus {
border-bottom-color: #6759ff;
}
#search-container button {
padding: 1em 2em;
margin-left: 1em;
background-color: #6759ff;
color: #ffffff;
border-radius: 5px;
margin-top: 0.5em;
}
.button-value {
border: 2px solid #6759ff;
padding: 1em 2.2em;
border-radius: 3em;
background-color: transparent;
color: #6759ff;
cursor: pointer;
}
.active {
background-color: #6759ff;
color: #ffffff;
}
#products {
display: grid;
grid-template-columns: auto auto auto;
grid-column-gap: 1.5em;
padding: 2em 0;
}
.card {
background-color: #ffffff;
max-width: 18em;
margin-top: 1em;
padding: 1em;
border-radius: 5px;
box-shadow: 1em 2em 2.5em rgba(1, 2, 68, 0.08);
}
.image-container {
text-align: center;
}
img {
max-width: 100%;
object-fit: contain;
height: 15em;
}
.container {
padding-top: 1em;
color: #110f29;
}
.container h5 {
font-weight: 500;
}
.hide {
display: none;
}
@media screen and (max-width: 720px) {
img {
max-width: 100%;
object-fit: contain;
height: 10em;
}
.card {
max-width: 10em;
margin-top: 1em;
}
#products {
grid-template-columns: auto auto;
grid-column-gap: 1em;
}
}Javascript:
Schließlich müssen wir dem Filter Funktionen hinzufügen und auch die Suchfunktion implementieren. Damit es funktioniert, fügen wir Javascript hinzu. Kopieren Sie den unten angegebenen Code und fügen Sie ihn in Ihre Javascript-Datei ein.
let products = {
data: [
{
productName: "Regular White T-Shirt",
category: "Topwear",
price: "30",
image: "white-tshirt.jpg",
},
{
productName: "Beige Short Skirt",
category: "Bottomwear",
price: "49",
image: "short-skirt.jpg",
},
{
productName: "Sporty SmartWatch",
category: "Watch",
price: "99",
image: "sporty-smartwatch.jpg",
},
{
productName: "Basic Knitted Top",
category: "Topwear",
price: "29",
image: "knitted-top.jpg",
},
{
productName: "Black Leather Jacket",
category: "Jacket",
price: "129",
image: "black-leather-jacket.jpg",
},
{
productName: "Stylish Pink Trousers",
category: "Bottomwear",
price: "89",
image: "pink-trousers.jpg",
},
{
productName: "Brown Men's Jacket",
category: "Jacket",
price: "189",
image: "brown-jacket.jpg",
},
{
productName: "Comfy Gray Pants",
category: "Bottomwear",
price: "49",
image: "comfy-gray-pants.jpg",
},
],
};
for (let i of products.data) {
//Create Card
let card = document.createElement("div");
//Card should have category and should stay hidden initially
card.classList.add("card", i.category, "hide");
//image div
let imgContainer = document.createElement("div");
imgContainer.classList.add("image-container");
//img tag
let image = document.createElement("img");
image.setAttribute("src", i.image);
imgContainer.appendChild(image);
card.appendChild(imgContainer);
//container
let container = document.createElement("div");
container.classList.add("container");
//product name
let name = document.createElement("h5");
name.classList.add("product-name");
name.innerText = i.productName.toUpperCase();
container.appendChild(name);
//price
let price = document.createElement("h6");
price.innerText = "$" + i.price;
container.appendChild(price);
card.appendChild(container);
document.getElementById("products").appendChild(card);
}
//parameter passed from button (Parameter same as category)
function filterProduct(value) {
//Button class code
let buttons = document.querySelectorAll(".button-value");
buttons.forEach((button) => {
//check if value equals innerText
if (value.toUpperCase() == button.innerText.toUpperCase()) {
button.classList.add("active");
} else {
button.classList.remove("active");
}
});
//select all cards
let elements = document.querySelectorAll(".card");
//loop through all cards
elements.forEach((element) => {
//display all cards on 'all' button click
if (value == "all") {
element.classList.remove("hide");
} else {
//Check if element contains category class
if (element.classList.contains(value)) {
//display element based on category
element.classList.remove("hide");
} else {
//hide other elements
element.classList.add("hide");
}
}
});
}
//Search button click
document.getElementById("search").addEventListener("click", () => {
//initializations
let searchInput = document.getElementById("search-input").value;
let elements = document.querySelectorAll(".product-name");
let cards = document.querySelectorAll(".card");
//loop through all elements
elements.forEach((element, index) => {
//check if text includes the search value
if (element.innerText.includes(searchInput.toUpperCase())) {
//display matching card
cards[index].classList.remove("hide");
} else {
//hide others
cards[index].classList.add("hide");
}
});
});
//Initially display all products
window.onload = () => {
filterProduct("all");
};Ihre Produktsuche und -filterung ist nun fertig. Ich hoffe, Ihnen hat das Tutorial gefallen.