lodash.isnumber

What is lodash.isnumber?

The lodash.isnumber package is a utility function that checks if a given value is classified as a number primitive or object. It is part of the Lodash library, which is a popular utility library for JavaScript.

What are lodash.isnumber's main functionalities?

Check if a value is a number

This feature allows you to check if a given value is a number. It returns true for number primitives and objects, including NaN, and false for non-number values.

const isNumber = require('lodash.isnumber');
console.log(isNumber(123)); // true
console.log(isNumber('123')); // false
console.log(isNumber(NaN)); // true

Other packages similar to lodash.isnumber

is-number

The is-number package is a simple utility that checks if a value is a number. It is similar to lodash.isnumber but is a standalone package without the additional utilities provided by Lodash. It also returns true for number primitives and objects, including NaN.

number-is-nan

The number-is-nan package is a utility that specifically checks if a value is NaN. While it is more specialized than lodash.isnumber, it can be useful in scenarios where you need to specifically identify NaN values.

is-numeric

The is-numeric package checks if a value is numeric, which includes both number primitives and numeric strings. This is slightly different from lodash.isnumber, which does not consider numeric strings as numbers.

README

lodash.isnumber v3.0.3

The lodash method _.isNumber exported as a Node.js module.

Installation

Using npm:

$ {sudo -H} npm i -g npm
$ npm i --save lodash.isnumber

In Node.js:

var isNumber = require('lodash.isnumber');

See the documentation or package source for more details.