Underscore.JS - invert method

Syntax

_.invert(object)

invert method swaps the key and values of object passed. See the below example −

Example

var _ = require('underscore');
// Example 1
var result = _.invert({one: 1, two : 2, three: 3});
console.log(result);

// Example 2
result = _.invert({ name: 'Sam', age: 30});
console.log(result);

Save the above program in tester.js. Run the following command to execute this program.

Command

\>node tester.js

Output

{ '1': 'one', '2': 'two', '3': 'three' }
{ '30': 'age', Sam: 'name' }