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Lodash _.invert() Method

  • Last Updated : 09 Sep, 2020

The _.invert() method is used to return the copy of an object where the object key is converted into value and object value is converted into the key. If object contains duplicate values, subsequent values overwrite property assignments.

Syntax:

_.invert(object)

Parameters: This method accepts a single parameter as mentioned above and described below:

  • object: This parameter holds the object to invert.

Return Value: This method returns the new inverted object.

Example 1:



Javascript




// Requiring the lodash library  
const _ = require("lodash");  
  
// Given object
var obj =  { 'a': 1, 'b': 2, 'c': 3 };
  
// Use of _.invert method 
console.log(_.invert(obj)); 

Output:

{ '1': 'a', '2': 'b', '3': 'c'}

Example 2:

Javascript




// Requiring the lodash library  
const _ = require("lodash");  
  
// Given object
var obj =  { 'a': 1, 'b': 2, 'c': 2 };
  
// Use of _.invert method 
console.log(_.invert(obj)); 

Output:

{ '1': 'a', '2': 'c' }

Example 3:  

Javascript




/// Requiring the lodash library  
const _ = require("lodash");  
   
// Given object
var obj = { 
            Name: "GeeksforGeeks"
            password: "gfg@1234"
            username: "your_geeks"
        
   
// Use of _.invert method 
console.log(_.invert(obj));

Output:

{GeeksforGeeks: "Name", 
gfg@1234: "password",
your_geeks: "username"}



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