Removing empty strings from an array in JavaScript

In this tutorial, we are going to learn how to remove the empty strings " " from an array in JavaScript.

Consider, we have an array of strings where some elements are empty strings.

const arr = ["Hello", "", "king", "", "queen", "",  "early"];

After removing the empty strings, the above array should look like this.

["Hello", "king", "queen", "early"]

Removing the empty strings

To remove the empty strings from an array, we can use the filter() method in JavaScript.

Example:

const arr = ["Hello", "", "king", "", "queen", "",  "early"];

const result =  arr.filter(e =>  e);

console.log(result); // ["Hello", "king", "queen", "early"]

In the above code, we have passed the callback function e => e to the filter method, so that it only keeps the elements which return true.

empty "" string is falsy value, so it removes from the array.