22
I Use This!
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Analyzed about 17 hours ago. based on code collected about 22 hours ago.

Project Summary

Underscore is a utility-belt library for JavaScript that provides a lot of the functional programming support that you would expect in Prototype.js (or Ruby), but without extending any of the built-in JavaScript objects. It's the tie to go along with jQuery's tux, and Backbone.js's suspenders.

Underscore provides 80-odd functions that support both the usual functional suspects: map, select, invoke — as well as more specialized helpers: function binding, javascript templating, deep equality testing, and so on. It delegates to built-in functions, if present, so modern browsers will use the native implementations of forEach, map, reduce, filter, every, some and indexOf.

Tags

crossbrowser filter invoke javascript library lightweight map nodejs

MIT License
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These details are provided for information only. No information here is legal advice and should not be used as such.

Project Security

Vulnerabilities per Version ( last 10 releases )

Project Vulnerability Report

Security Confidence Index

Poor security track-record
Favorable security track-record

Vulnerability Exposure Index

Many reported vulnerabilities
Few reported vulnerabilities

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About Project Security

30 Day Summary

Jan 12 2026 — Feb 11 2026

12 Month Summary

Feb 11 2025 — Feb 11 2026
  • 6 Commits
    Down -34 (85%) from previous 12 months
  • 2 Contributors
    Down -3 (60%) from previous 12 months