Posts

Nothing can be simpler than comparing two numbers. However, there are some details that you need to know about comparing numbers in JS. ...

In JavaScript, there are 2 different zeros. A regular 0 is a bit different from -0 in JS. ...

You can check strict equality in JavaScript using the operator ===. This operator does strict comparison and considers the operands equal if they’re of the same type, and their values are equal. ...

In HTML there are 2 ways to hide an element. You can either make it invisible or make it hidden. The difference between a hidden HTML element and an invisible one is the amount of space occupied by the HTML element....

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

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

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

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....

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

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....