Deshaun  Olson

Deshaun Olson

1603485300

How to Build a Budget App With React, Typescript & Web Storage API Pt.2

Learning React and TypeScript doesn’t have to be hard or boring. It can be fun. This tutorial will show you how to build your own simple budget app using React and TypeScript. It will also show you how to use Web Storage API to make data in your web app persistent.

How to Build a Budget App With React, Typescript & Web Storage API Part 1.

You can find the code on my GitHub (make sure you are on “blog-tutorial” branch).

BudgetItemAdd component

The BudgetItemAdd component will allow to add new item on the list in your budget app. This component will be a modal dialog accessible from the main screen. At the top will be component states for datetitleprice and isPaid, created with useReact React hook. These states will get value from input elements.

These inputs will be wrapped inside form element. Your budget app will use a handleFormSubmit function to handle this form. This function will take the values of datetitleprice and isPaid states, generate unique id using shortid and call handleAddItem function, passed via props, passing all previous data as an argument.

After this function is called the budget app will automatically reset all local states. It will do so by setting them to their initial values. Then, it will use handleShowAddItem function, passed via props, to automatically close the modal dialog.

// components/budget-item-add

// Import react & shortid
import * as React from 'react'
import shortid from 'shortid'

// Import interface
import { BudgetItemAddInterface } from './../interfaces'

// BudgetItemAdd component
const BudgetItemAdd = (props: BudgetItemAddInterface) => {
  // Prepare BudgetItemAdd states
  const [date, setDate] = React.useState('')
  const [title, setTitle] = React.useState('')
  const [price, setPrice] = React.useState(0)
  const [isPaid, setIsPaid] = React.useState(false)

  function handleFormSubmit(event: React.FormEvent<HTMLFormElement>) {
    // Prevent form from submitting
    event.preventDefault()

    // Create new item
    props.handleAddItem({
      date: date,
      title: title,
      price: price,
      isPaid: isPaid,
      id: shortid.generate()
    })

    // Reset form state
    setDate('')
    setTitle('')
    setPrice(0)
    setIsPaid(false)

    // Close modal window
    props.handleShowAddItem(!props.showAddItem)
  }

  return (
    <div className="modal-wrapper">
      <div className="modal-dialog">
        <button className="btn btn-cross" onClick={() => props.handleShowAddItem(!props.showAddItem)}>⨯</button>

        <form onSubmit={handleFormSubmit}>
          <fieldset>
            {/* Date the item was added */}
            <label htmlFor="date">Date of payment:</label>

            <input
              type="date"
              id="date"
              value={date}
              onChange={(event) => setDate(event.target.value)}
              required={true}
            />
          </fieldset>

          <fieldset>
            {/* Title of the item */}
            <label htmlFor="title">Item name:</label>

            <input
              type="text"
              id="title"
              value={title}
              onChange={(event) => setTitle(event.target.value)}
              required={true}
            />
          </fieldset>

          <fieldset>
            {/* Price of the item */}
            <label htmlFor="price">Item price:</label>

            <input
              type="number"
              id="price"
              value={price}
              onChange={(event) => setPrice(parseInt(event.target.value, 10))}
              min="0"
              step="1"
              required={true}
            />
          </fieldset>

          <fieldset>
            {/* Mark as paid */}
            <input
              className="custom-checkbox-checkbox"
              type="checkbox"
              id="isPaid"
              checked={isPaid}
              onChange={() => setIsPaid(!isPaid)}
            />

            <label className="custom-checkbox-label" htmlFor="isPaid"> Item is already paid</label>
          </fieldset>

          <fieldset>
            <input
              className="btn btn-add"
              type="submit"
              value="+ Add item"
            />
          </fieldset>
        </form>
      </div>
    </div>
  )
}

export default BudgetItemAdd

#typescript #react #web storage api #javascript #design development

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How to Build a Budget App With React, Typescript & Web Storage API Pt.2
Autumn  Blick

Autumn Blick

1598839687

How native is React Native? | React Native vs Native App Development

If you are undertaking a mobile app development for your start-up or enterprise, you are likely wondering whether to use React Native. As a popular development framework, React Native helps you to develop near-native mobile apps. However, you are probably also wondering how close you can get to a native app by using React Native. How native is React Native?

In the article, we discuss the similarities between native mobile development and development using React Native. We also touch upon where they differ and how to bridge the gaps. Read on.

A brief introduction to React Native

Let’s briefly set the context first. We will briefly touch upon what React Native is and how it differs from earlier hybrid frameworks.

React Native is a popular JavaScript framework that Facebook has created. You can use this open-source framework to code natively rendering Android and iOS mobile apps. You can use it to develop web apps too.

Facebook has developed React Native based on React, its JavaScript library. The first release of React Native came in March 2015. At the time of writing this article, the latest stable release of React Native is 0.62.0, and it was released in March 2020.

Although relatively new, React Native has acquired a high degree of popularity. The “Stack Overflow Developer Survey 2019” report identifies it as the 8th most loved framework. Facebook, Walmart, and Bloomberg are some of the top companies that use React Native.

The popularity of React Native comes from its advantages. Some of its advantages are as follows:

  • Performance: It delivers optimal performance.
  • Cross-platform development: You can develop both Android and iOS apps with it. The reuse of code expedites development and reduces costs.
  • UI design: React Native enables you to design simple and responsive UI for your mobile app.
  • 3rd party plugins: This framework supports 3rd party plugins.
  • Developer community: A vibrant community of developers support React Native.

Why React Native is fundamentally different from earlier hybrid frameworks

Are you wondering whether React Native is just another of those hybrid frameworks like Ionic or Cordova? It’s not! React Native is fundamentally different from these earlier hybrid frameworks.

React Native is very close to native. Consider the following aspects as described on the React Native website:

  • Access to many native platforms features: The primitives of React Native render to native platform UI. This means that your React Native app will use many native platform APIs as native apps would do.
  • Near-native user experience: React Native provides several native components, and these are platform agnostic.
  • The ease of accessing native APIs: React Native uses a declarative UI paradigm. This enables React Native to interact easily with native platform APIs since React Native wraps existing native code.

Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.

#android app #frontend #ios app #mobile app development #benefits of react native #is react native good for mobile app development #native vs #pros and cons of react native #react mobile development #react native development #react native experience #react native framework #react native ios vs android #react native pros and cons #react native vs android #react native vs native #react native vs native performance #react vs native #why react native #why use react native

Deshaun  Olson

Deshaun Olson

1603485300

How to Build a Budget App With React, Typescript & Web Storage API Pt.2

Learning React and TypeScript doesn’t have to be hard or boring. It can be fun. This tutorial will show you how to build your own simple budget app using React and TypeScript. It will also show you how to use Web Storage API to make data in your web app persistent.

How to Build a Budget App With React, Typescript & Web Storage API Part 1.

You can find the code on my GitHub (make sure you are on “blog-tutorial” branch).

BudgetItemAdd component

The BudgetItemAdd component will allow to add new item on the list in your budget app. This component will be a modal dialog accessible from the main screen. At the top will be component states for datetitleprice and isPaid, created with useReact React hook. These states will get value from input elements.

These inputs will be wrapped inside form element. Your budget app will use a handleFormSubmit function to handle this form. This function will take the values of datetitleprice and isPaid states, generate unique id using shortid and call handleAddItem function, passed via props, passing all previous data as an argument.

After this function is called the budget app will automatically reset all local states. It will do so by setting them to their initial values. Then, it will use handleShowAddItem function, passed via props, to automatically close the modal dialog.

// components/budget-item-add

// Import react & shortid
import * as React from 'react'
import shortid from 'shortid'

// Import interface
import { BudgetItemAddInterface } from './../interfaces'

// BudgetItemAdd component
const BudgetItemAdd = (props: BudgetItemAddInterface) => {
  // Prepare BudgetItemAdd states
  const [date, setDate] = React.useState('')
  const [title, setTitle] = React.useState('')
  const [price, setPrice] = React.useState(0)
  const [isPaid, setIsPaid] = React.useState(false)

  function handleFormSubmit(event: React.FormEvent<HTMLFormElement>) {
    // Prevent form from submitting
    event.preventDefault()

    // Create new item
    props.handleAddItem({
      date: date,
      title: title,
      price: price,
      isPaid: isPaid,
      id: shortid.generate()
    })

    // Reset form state
    setDate('')
    setTitle('')
    setPrice(0)
    setIsPaid(false)

    // Close modal window
    props.handleShowAddItem(!props.showAddItem)
  }

  return (
    <div className="modal-wrapper">
      <div className="modal-dialog">
        <button className="btn btn-cross" onClick={() => props.handleShowAddItem(!props.showAddItem)}>⨯</button>

        <form onSubmit={handleFormSubmit}>
          <fieldset>
            {/* Date the item was added */}
            <label htmlFor="date">Date of payment:</label>

            <input
              type="date"
              id="date"
              value={date}
              onChange={(event) => setDate(event.target.value)}
              required={true}
            />
          </fieldset>

          <fieldset>
            {/* Title of the item */}
            <label htmlFor="title">Item name:</label>

            <input
              type="text"
              id="title"
              value={title}
              onChange={(event) => setTitle(event.target.value)}
              required={true}
            />
          </fieldset>

          <fieldset>
            {/* Price of the item */}
            <label htmlFor="price">Item price:</label>

            <input
              type="number"
              id="price"
              value={price}
              onChange={(event) => setPrice(parseInt(event.target.value, 10))}
              min="0"
              step="1"
              required={true}
            />
          </fieldset>

          <fieldset>
            {/* Mark as paid */}
            <input
              className="custom-checkbox-checkbox"
              type="checkbox"
              id="isPaid"
              checked={isPaid}
              onChange={() => setIsPaid(!isPaid)}
            />

            <label className="custom-checkbox-label" htmlFor="isPaid"> Item is already paid</label>
          </fieldset>

          <fieldset>
            <input
              className="btn btn-add"
              type="submit"
              value="+ Add item"
            />
          </fieldset>
        </form>
      </div>
    </div>
  )
}

export default BudgetItemAdd

#typescript #react #web storage api #javascript #design development

Deshaun  Olson

Deshaun Olson

1603477980

How to Build a Budget App With React, Typescript & Web Storage API Pt.1

Do you want to learn React, TypeScript or Web Storage API? This tutorial will help you with it. Step by step, it will help you build your own budget app using these technologies. Learn React, TypeScript and Web Storage API while building your own budget app!

How to Build a Budget App With React, Typescript & Web Storage API Part 2.

You can find the code on my GitHub (make sure you are on “blog-tutorial” branch).

Introduction

At the end of this tutorial you will have a working budget app with following features. First, it will allow you to set a budget. You will also be able to choose in what currency you want the budget to be. Don’t worry. You don’t have to remember any codes. App will help you choose the currency code from options provided by datalist.

Second, it will allow you to choose a budget period-daily, monthly or yearly budget. Third, it will allow you to create a list of items, things, you either will buy or you already bought. Then, depending on the payment status, paid or not paid, it will show you how much budget remains. Or, if you are already in red numbers, if you’ve spent your entire budget.

Lastly, it will also allow you to store your data, items on the list and app settings, in app state or in localStorage or sessionStorage, using Web Storage API. Thanks to web storage API, you will be able to keep your data even if refresh your app in the browser. Well, only if you decide to use local or session storage as your preferred storage method. Otherwise, it will be erased.

As I mentioned, the tech stack for this budget app will be React, TypeScript and Web Storage API. In addition you will also use React Router. You will use this library to create routing for homepage and Settings page of your budget app. That’s for the introduction. Now, let’s get to work.

#typescript #react #javascript #design development #web storage api

Fredy  Larson

Fredy Larson

1595059664

How long does it take to develop/build an app?

With more of us using smartphones, the popularity of mobile applications has exploded. In the digital era, the number of people looking for products and services online is growing rapidly. Smartphone owners look for mobile applications that give them quick access to companies’ products and services. As a result, mobile apps provide customers with a lot of benefits in just one device.

Likewise, companies use mobile apps to increase customer loyalty and improve their services. Mobile Developers are in high demand as companies use apps not only to create brand awareness but also to gather information. For that reason, mobile apps are used as tools to collect valuable data from customers to help companies improve their offer.

There are many types of mobile applications, each with its own advantages. For example, native apps perform better, while web apps don’t need to be customized for the platform or operating system (OS). Likewise, hybrid apps provide users with comfortable user experience. However, you may be wondering how long it takes to develop an app.

To give you an idea of how long the app development process takes, here’s a short guide.

App Idea & Research

app-idea-research

_Average time spent: two to five weeks _

This is the initial stage and a crucial step in setting the project in the right direction. In this stage, you brainstorm ideas and select the best one. Apart from that, you’ll need to do some research to see if your idea is viable. Remember that coming up with an idea is easy; the hard part is to make it a reality.

All your ideas may seem viable, but you still have to run some tests to keep it as real as possible. For that reason, when Web Developers are building a web app, they analyze the available ideas to see which one is the best match for the targeted audience.

Targeting the right audience is crucial when you are developing an app. It saves time when shaping the app in the right direction as you have a clear set of objectives. Likewise, analyzing how the app affects the market is essential. During the research process, App Developers must gather information about potential competitors and threats. This helps the app owners develop strategies to tackle difficulties that come up after the launch.

The research process can take several weeks, but it determines how successful your app can be. For that reason, you must take your time to know all the weaknesses and strengths of the competitors, possible app strategies, and targeted audience.

The outcomes of this stage are app prototypes and the minimum feasible product.

#android app #frontend #ios app #minimum viable product (mvp) #mobile app development #web development #android app development #app development #app development for ios and android #app development process #ios and android app development #ios app development #stages in app development

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