Underscore.JS - matcher method

Syntax

_.matcher(attrs)

matcher method returns a predicate function which handles if an object contains all key/value properties present in attrs. See the below example −

Example

var _ = require('underscore');

var students = [{name: 'Sam', age: 10}, {name: 'Julie', age: 11}]

// Example: Create a matcher of matching age to be 10
var ageMatcher = _.matcher({age: 10});

var result = _.filter(students, ageMatcher);
console.log(result);

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

Command

\>node tester.js

Output

[ { name: 'Sam', age: 10 } ]