lodash.identity

Basic Usage

The basic usage of lodash.identity is to return the first argument it receives. In this example, it simply returns the number 5.

const identity = require('lodash.identity');
console.log(identity(5)); // Output: 5

Using with Array Methods

Lodash.identity can be used as a callback function in array methods like map. In this example, it returns each element of the array as is.

const identity = require('lodash.identity');
const arr = [1, 2, 3, 4];
const result = arr.map(identity);
console.log(result); // Output: [1, 2, 3, 4]

Using with Lodash Methods

Lodash.identity can be used with other lodash methods like filter. In this example, it returns all elements of the array that are truthy.

const _ = require('lodash');
const identity = require('lodash.identity');
const arr = [1, 2, 3, 4];
const result = _.filter(arr, identity);
console.log(result); // Output: [1, 2, 3, 4]