Underscore.js _.repeat() Method

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The _.repeat() method takes an integer and a value and creates an array of that size containing the given the value given integer times.

Syntax:

_.repeat(n, value)

Parameters:

n: The given integer for the times the value will be in the array.
value: The value to be in the array n times.

Return Value: This method returns a newly created 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 1: In this example, we will generate a repeat array using this method.

Javascript

// Defining underscore contrib variable 
var _ = require('underscore-contrib');  
  
// Integer 
var integer = 10; 
  
// Value 
var value = "zambiatek"; 
  
// Generating Array using Repeat method 
var arr =_.repeat(integer, value); 
console.log("Integer : ", integer); 
console.log("Value : ", value); 
console.log("Generated Array : ", arr);

Output:

Integer :  10
Value :  zambiatek
Generated Array :  [
  'zambiatek',
  'zambiatek',
  'zambiatek',
  'zambiatek',
  'zambiatek',
  'zambiatek',
  'zambiatek',
  'zambiatek',
  'zambiatek',
  'zambiatek'
]

Example 2: Value can also be an integer.

Javascript

// Defining underscore contrib variable 
var _ = require('underscore-contrib');  
  
// Integer 
var integer = 10; 
  
// Value 
var value = 1; 
  
// Generating Array using Repeat method 
var arr =_.repeat(integer, value); 
console.log("Integer : ", integer); 
console.log("Value : ", value); 
console.log("Generated Array : ", arr);

Output:

Integer :  10
Value :  1
Generated Array :  [
  1, 1, 1, 1, 1,
  1, 1, 1, 1, 1
]

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