Underscore.JS - mapObject method

Syntax

_.mapObject(object, iteratee, [context])

mapObject method transform each value of an object using iteratee function provided. See the below example −

Example

var _ = require('underscore');

// Example 1
var result = _.mapObject({one: 1, two : 2, three: 3}, function(value, key){
   return value * value;
});
console.log(result);

// Example 2
result = _.mapObject({ name: 'Sam', age: 30}, function(value, key){
   return value + 10;
});
console.log(result);

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

Command

\>node tester.js

Output

{ one: 1, two: 4, three: 9 }
{ name: 'Sam10', age: 40 }