- Underscore.JS Tutorial
- Underscore.JS - Home
- Underscore.JS - Overview
- Underscore.JS - Environment Setup
- Underscore.JS - Iterating Collection
- Underscore.JS - Processing Collection
- Underscore.JS - Iterating Array
- Underscore.JS - Processing Array
- Underscore.JS - Functions
- Underscore.JS - Mapping Objects
- Underscore.JS - Updating Objects
- Underscore.JS - Comparing Objects
- Underscore.JS - Utilities
- Underscore.JS - Chaining
- Underscore.JS Useful Resources
- Underscore.JS - Quick Guide
- Underscore.JS - Useful Resources
- Underscore.JS - Discussion
Underscore.JS - some method
Syntax
_.some(list, predicate, [context])
every method iterates over a given list of element, calls the predicate on each element. It returns true if any value of collection matches the given predicate.
Example
var _ = require('underscore'); var list = [1, 2, 3, 5] //Example 1. check if any number is even var result = _.some(list, function(num) { return (num % 2 == 0) }); console.log(result); list = [1, 3, 5] //Example 2. check if any number is even var result = _.some(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
true false
underscorejs_iterating_collection.htm
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