Lodash _.prototype[Symbol.iterator]() Method

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Lodash is a JavaScript library that works on the top of underscore.js. Lodash helps in working with arrays, strings, objects, numbers, etc.

The _.prototype[Symbol.iterator]() method of Sequence in lodash is used to permit the wrapper to be iterable.

Syntax:

_.prototype[Symbol.iterator]()

Parameters: This method doesn’t accept any parameter.

Return Value: This method returns the lodash wrapper object.

Example 1:

Javascript

// Requiring lodash library 
const _ = require('lodash'); 
  
// Creating wrapped variable 
var wrapr = _([8, 9]); 
   
// Calling [Symbol.iterator]() method 
wrapr[Symbol.iterator]() === wrapr; 
  
let obj = Array.from(wrapr); 
  
// Displays output 
console.log(obj);

Output:

[ 8, 9 ]

Example 2:

Javascript

// Requiring lodash library 
const _ = require('lodash'); 
  
// Creating wrapped variable 
var wrapr = _(['Geeks', 'for', 'Geeks']); 
   
// Calling [Symbol.iterator]() method 
wrapr[Symbol.iterator]() === wrapr; 
  
let obj = Array.from(wrapr); 
  
// Displays output 
console.log(obj);

Output:

[ 'Geeks', 'for', 'Geeks' ]

Example 3:

Javascript

// Requiring lodash library 
const _ = require('lodash'); 
  
// Calling [Symbol.iterator]() method and 
// comparing it with wrapped value 
_("Geeks")[Symbol.iterator]() === _("Geeks"); 
  
// Wrapper object 
let obj = Array.from(_("Geeks")); 
  
// Displays output 
console.log(obj[0]); 
console.log(obj[1]); 
console.log(obj[2]); 
console.log(obj[3]);

Output:

G
e
e
k

Reference: https://lodash.com/docs/4.17.15#prototype-Symbol-iterator

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