馃殌 CYBER WEEK SALE: 50% OFF on JavaScript Fundamentals 馃挭

What is the difference between single and double quotes in JavaScript

There鈥檚 no functional difference between single and double quotes in JS. Both could be used to create JavaScript strings. Mostly it鈥檚 just about the code style that鈥檚 used in your project....

January 31, 2022 路 1 min 路 Coderslang Master

How to remove duplicates from a JavaScript array

There are multiple ways you can remove duplicates from a JS array. My favorite one is by using a Set and a spread operator. ...

January 30, 2022 路 1 min 路 Coderslang Master

Format a JavaScript Number to a Currency String

You can use the function toLocaleString or Intl.NumberFormat to get a formatted currency string from the JavaScript number. Here鈥檚 how it works. ...

January 29, 2022 路 1 min 路 Coderslang Master

How to empty an array in JavaScript

One of the easiest ways to empty a JS array is to set its length to zero. Alternatively you can use the functions pop or splice. Empty a JavaScript array by setting its length to 0 The length property holds the size of an array in JS....

January 28, 2022 路 1 min 路 Coderslang Master

How to check if a variable is a string in JavaScript

To check that a JS variable is of a type string, you can use 2 operators: instanceof and typeof. Here鈥檚 a quick solution. if (typeof text === 'string' || text instanceof String) { // it's a string!...

January 27, 2022 路 1 min 路 Coderslang Master

Get random number in a range using JavaScript

To get a random number is JS you almost always rely on the function Math.random. The only issue is that it returns a number between 0 and 1. You can generate a number in a specific range by writing a straightforward function....

January 26, 2022 路 1 min 路 Coderslang Master

How to get screen width and height with JavaScript

The object window.screen holds all the information you about the current screen. You can access the resolution of the screen by accessing its width and height properties. ...

January 25, 2022 路 1 min 路 Coderslang Master

How to remove the last n characters from a JavaScript string

Before you make another step, remember, that strings in JavaScript are immutable. This means that you can鈥檛 alter the string by removing something from it. So, when you want to remove the last n symbols from a string in JS, your only option is to create a new string that wouldn鈥檛 have these n characters....

January 24, 2022 路 2 min 路 Coderslang Master

How to generate a random string in JavaScript

To generate a random string in JS you should start by defining the set of characters that will be used to generate that random string. Let鈥檚 go! ...

January 23, 2022 路 2 min 路 Coderslang Master

Set default parameter values for JavaScript functions

You can add different default values to your JavaScript functions with a simple trick. Let鈥檚 see how it works. ...

January 22, 2022 路 1 min 路 Coderslang Master