In this article, we will discuss the 15 useful JavaScript tips for every web developer to save their valuable and precious time.

I am always ready to learn although I do not always like being taught

Winston Churchill

Tip 1. Flatten the array of the array

This tip will help you to flatten a deeply nested array of arrays by usingInfinityinflat.

var array = [123, 500, [1, 2, [34, 56, 67, [234, 1245], 900]], 845, [30257]]//flatten array of array
array.flat(Infinity)// output:
// [123, 500, 1, 2, 34, 56, 67, 234, 1245, 900, 845, 30257]

Tip 2. Easy Exchange Variables

You probably swap the two variables using a third variabletemp. But this tip will show you a new way to exchange variables using destructuring.

//example 1var a = 6;
var b = 7;[a,b] = [b,a]console.log(a,b) // 7 6