Remove null from an Array with Lodash

Remove null from an Array with Lodash – onlinecode

Remove null from an Array with Lodash

In this post, we will give you information about Remove null from an Array with Lodash. Here we will give you detail about Remove null from an Array with Lodash And how to use it also give you a demo for it if it is necessary.

To remove a null from an array, you should use lodash’s filter function. It takes two arguments:

  • collection: the object or array to iterate over.
  • predicate: the function invoked per iteration.

The filter() function returns a new array containing all elements predicate returned a truthy value for.
To remove null, you can call filter() with v => v !== null as the predicate.

const _ = require('lodash');

const arr = ['a', true, null, undefined, 42];

_.filter(arr, v => v !== null); // ['a', true, undefined, 42]

To remove null using filter, you can use the _.isNull function as the predicate. Simply add a negate in front of the isNull and all null values will be filtered out.(Remove null from an Array with Lodash)

const _ = require('lodash');

const array = ['a', true, null, undefined, 42]; // ['a', true, undefined, 42]

_.filter(array, el => !_.isNull(el));

Lodash is a JavaScript library which provides utility functions for common programming tasks using the functional programming paradigm. Lodash is a JavaScript library that helps programmers write more concise and maintainable JavaScript. It can be broken down into several main areas: Utilities: for simplifying common programming tasks such as determining type as well as simplifying math operations.

Why Lodash?

Lodash makes JavaScript easier by taking the hassle out of working with arrays, numbers, objects, strings, etc.Lodash’s modular methods are great for:

  • Iterating arrays, objects, & strings
  • Manipulating & testing values
  • Creating composite functions

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