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Underscore.js _.cycle() Method

  • Last Updated : 23 Jul, 2020

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, strung end-to-end.

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

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_.cycle(integer, array);


  • integer: The number of times 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.

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


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
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