Underscore.js

Underscore.js is a JavaScript utility library that provides functional programming helpers for common tasks like iteration, manipulation, and data transformation. It offers over 100 functions for working with arrays, objects, and functions, making code more concise and readable. It was widely used before modern JavaScript features like ES6+ became standard.

Also known as: Underscore, UnderscoreJS, _, underscorejs, underscore.js

Why learn Underscore.js?

Developers should learn Underscore.js when working on legacy codebases or projects that rely on its utilities for functional programming patterns. It's useful for tasks like data manipulation, filtering arrays, and chaining operations, especially in environments without full ES6 support. However, for new projects, native JavaScript methods or modern alternatives are often preferred.

Learning Resources

• docs: Underscore.js Official Documentation
• tutorial: Underscore.js Tutorial on TutorialsPoint
• video: Underscore.js Crash Course on YouTube
• course: Learning Underscore.js on Pluralsight