CSS Functions That Save Your Life

Using CSS you cannot write functions to connect with database or an API call. But there are some built-in functions that helps to code better as a Front-end developer.

I skip some basic functions that every frontend devs know. So lets talk about some cool features that you probably not heard of.

Note: This is for devs who don’t care about IE and old browsers support.

env()

The env() CSS function can be used to insert the value of a user agent defined environment variable into your CSS, in a similar to the var() function and custom properties.

Using env() will save your site from hiding to from funky notch and dot

<meta name="viewport" content="viewport-fit=cover" />
body {
  padding:
    env(safe-area-inset-top, 20px)
    env(safe-area-inset-right, 20px)
    env(safe-area-inset-bottom, 20px)
    env(safe-area-inset-left, 20px);
}

The safe-area-inset-* variables are four environment variables that define a rectangle by its top, right, bottom, and left insets from the edge of the viewport, which is safe to put content into without risking it being cut off by the shape of a non‑rectangular display. For rectangular viewports, like your average laptop monitor, their value is equal to zero. For non-rectangular displays — like a round watch face — the four values set by the user agent form a rectangle such that all content inside the rectangle is visible.

clamp()

@media query is the part where people hate about writing frontend code. If you already know about min() and max() functions then you might know how they helped to write @media queries.

Eg: min() function uses the minimum rendered value at any point of time.

img{
    width: min(75%, 600px); // similar to width = 75% and max-width = 600px
}

#css #web-development #programming #developer

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The Difference Between Regular Functions and Arrow Functions in JavaScript

Other then the syntactical differences. The main difference is the way the this keyword behaves? In an arrow function, the this keyword remains the same throughout the life-cycle of the function and is always bound to the value of this in the closest non-arrow parent function. Arrow functions can never be constructor functions so they can never be invoked with the new keyword. And they can never have duplicate named parameters like a regular function not using strict mode.

Here are a few code examples to show you some of the differences

this.name = "Bob";
const person = {

name: “Jon”,
<span style="color: #008000">// Regular function</span>
func1: <span style="color: #0000ff">function</span> () {
    console.log(<span style="color: #0000ff">this</span>);
},

<span style="color: #008000">// Arrow function</span>
func2: () =&gt; {
    console.log(<span style="color: #0000ff">this</span>);
}

}
person.func1(); // Call the Regular function

// Output: {name:“Jon”, func1:[Function: func1], func2:[Function: func2]}
person.func2(); // Call the Arrow function

// Output: {name:“Bob”}

The new keyword with an arrow function

const person = (name) => console.log("Your name is " + name);
const bob = new person("Bob");
// Uncaught TypeError: person is not a constructor

If you want to see a visual presentation on the differences, then you can see the video below:

#arrow functions #javascript #regular functions #arrow functions vs normal functions #difference between functions and arrow functions

Creating a CSS Visual Cheatsheet

The other day one of our students asked about possibility of having a CSS cheatsheet to help to decide on the best suited approach when doing this or that layout.

This evolved into the idea of making a visual CSS cheatsheet with all (most) of the common patterns we see everyday and one of the best possible conceptual implementation for them.

In the end any layout could and should be split into parts/blocks and we see every block separately.

Here is our first take on that and we would be happy to keep extending it to help us all.

Please, send you suggestions in the comments in community or via gitlab for the repeated CSS patterns with your favourite implementation for that so that we will all together make this as useful as it can be.

#css #css3 #cascading-style-sheets #web-development #html-css #css-grids #learning-css #html-css-basics

CSS Alignment Made Simple

CSS is seen as an impediment in web development for many of us. Most of the time it looks like even when you follow the rules and everything seems clear, it still doesn’t work the way you want it to.

Therefore, the purpose of this article is to make some features of CSS much easier to understand.

The thing I want to address now is the alignment of the elements.

Without further ado, here are some of the most common scenarios one might encounter when it comes to this topic and how they can be approached.

#css-center #css-position #css-flexbox #css-center-image-in-a-div #css

This CSS Cut Out Effect is Guaranteed to Blow Your Mind 🤯

This effect is so cool and just fun to see. What it comes down to is having a background image show through the text.

How it works is that we will have a div that will have the image as a background. On that, we put our text element, using blend-mode it will show through the image.

The result you can see and touch on this Codepen.

#css #css3 #html-css #css-grids #learning-css #html-css-basics