Lodash is a JavaScript library that works on the top of underscore.js. Lodash helps in working with arrays, strings, objects, numbers, etc.
The _.reverse() is used to reverse the array. This function changes the original array and also returns a new array.
Syntax:
_.reverse( array )
Parameters: This function accepts single parameter array that holds the array of elements.
Return Value: It returns the reversed array.
Note: Please install lodash module by using npm install lodash before using the below given code.
Example 1: This examples shows that this function effect the original array.
javascript
// Requiring the lodash library const _ = require("lodash"); // Original array let array1 = [1, 2, 3, 4] // Printing original Array console.log("original Array1: ", array1) // Using _.reverse() method let reversedArray = _.reverse(array1); // Printing the reversedArray console.log("reversed Array: ", reversedArray) // Printing original Array console.log("original Array1: ", array1) |
Output:
Example 2: In this example, we will take an array of objects and reverse them.
javascript
// Requiring the lodash library const _ = require("lodash"); // Original array let array1 = [ { "a": 1 }, { "a": 2, "b": 3 }, { "c": 3 } ] // Printing original Array console.log("original Array1: ", array1) // Using _.reverse() method let reversedArray = _.reverse(array1); // Printing the reversedArray console.log("reversed Array: ", reversedArray) // Printing original Array console.log("original Array1: ", array1) |
Output:
