There are quite a few ways in Javascript to loop through an array of items or any other iterable item in Javascript. You may have seen them: arr.forEach() for(let item of arr) for(let item in arr) for ...

When working with arrays in JavaScript, there are times when you want to perform the same operation on all data. For example, when you want to display numbers in a list one by one, or process strings ...

Let’s first take a look at the definitions on MDN: forEach() — executes a provided function once for each array element. map() — creates a new array with the results of calling a provided function on ...

JavaScript’s arrays can hold heterogeneous types, change size on the fly, and readily insert or remove elements. Traditional methods like slice, splice, and push/pop do this by operating on the array ...