Underscore.js _.cycle() Method

The _.cycle() Method takes an integer value and an array which is then used to build an array containing the number of iterations through the given array, string end-to-end.

A new array created contains the given array number of given times.

Syntax:

_.cycle(integer, array);

Parameters:

• integer: The number of times the given array is iterated.
• array: The array which is iterated to make a new array

Return Value: This method returns a cycled array.

Note: This will not work in normal JavaScript because it requires the underscore.js contrib library to be installed.

underscore.js contrib library can be installed using 

npm install underscore-contrib --save

Example: In this example, we will simply create a cycled array using this method.

javascript

// Defining underscore contrib variable
const _ = require('underscore-contrib');
// Integer
let int = 10;
// Array
let arr = [1, 2, 3];
// Constructing cycled array
let c_arr = _.cycle(int, arr);
console.log("cycled array : ");
console.log(c_arr);

Output:

cycled array :
[
  1, 2, 3, 1, 2, 3, 1, 2, 3,
  1, 2, 3, 1, 2, 3, 1, 2, 3,
  1, 2, 3, 1, 2, 3, 1, 2, 3,
  1, 2, 3
]