Underscore.JS - filter method

Syntax

_.filter(list, predicate, [context])

filter method iterates over a given list of element, calls the predicate on each element. It returns the all matched cases.

Example

var _ = require('underscore');

var list = [1, 2, 3, 4, 5, 6]
//Example 1. find even numbers
var result = _.filter(list, function(num) { return num % 2 == 0 });
console.log(result);

//Example 2. find odd numbers
var result = _.filter(list, function(num) { return !(num % 2 == 0) });
console.log(result);

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

Command

\>node tester.js

Output

[ 2, 4, 6 ]
[ 1, 3, 5 ]