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Lazy.js VS Underscore.js

Compare Lazy.js VS Underscore.js and see what are their differences

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Lazy.js logo Lazy.js

Lazy.js is a functional utility library for JavaScript

Underscore.js logo Underscore.js

Underscore is a utility-belt library for JavaScript that provides a lot of the functional...
  • Lazy.js Landing page
    Landing page //
    2019-11-22
  • Underscore.js Landing page
    Landing page //
    2018-12-17

Lazy.js features and specs

No features have been listed yet.

Underscore.js features and specs

  • Utility Functions
    Underscore.js provides a wealth of utility functions for common tasks such as map, reduce, filter, and more, making it easier to perform operations on arrays, objects, and collections.
  • Consistency
    The library offers a consistent API, which can make your code more readable and maintainable by providing a standard way to perform common programming tasks.
  • Lightweight
    Underscore.js is lightweight compared to full-featured libraries like Lodash, which can be a benefit if you're looking to minimize your application's footprint.
  • Browser Compatibility
    It supports a wide range of JavaScript environments, making it a good choice for projects that need to work across different browsers and Node.js.
  • Quick to Learn
    Easy to pick up for developers with even a basic understanding of JavaScript, due to its straightforward documentation and familiar function names.

Possible disadvantages of Underscore.js

  • Performance
    Underscore.js may not offer the same level of performance optimizations as more modern utility libraries like Lodash, potentially leading to slower execution for some tasks.
  • Limited Functionality
    While it covers many basic utility functions, its feature set is not as extensive as Lodash or other similar libraries, which provide a broader range of capabilities.
  • Outdated
    With the advent of ECMAScript 5 and later versions, many of the functions provided by Underscore.js are now natively available in JavaScript, reducing its necessity.
  • No Modularization
    Underscore does not support modular builds in the same way Lodash does, meaning you might end up including the entire library even if you only need a few functions.
  • Community and Maintenance
    While still maintained, Underscore.js has seen less active development and contributions compared to newer libraries, which could impact its long-term viability and support.

Analysis of Underscore.js

Overall verdict

  • Underscore.js is a reasonable choice if you need a lightweight library for concise, functional programming helpers. While newer libraries or vanilla JavaScript have made some of its functions less essential, Underscore.js remains useful for its simplicity and comprehensive utility set.

Why this product is good

  • Underscore.js is a popular JavaScript library that provides a comprehensive set of utility functions for common programming tasks. It is valued for its simplicity and ease of integration, especially in projects that require functional programming patterns but do not need the full capabilities of larger libraries like Lodash. Underscore.js is lightweight and can significantly enhance productivity by offering functions for tasks such as object manipulation, array operations, and function binding, making code more readable and maintainable.

Recommended for

    Developers working on smaller projects or legacy codebases that require a reliable utility library with functional programming techniques. It’s also suitable for those who prefer a minimalistic approach and don’t require the extensive features of heavier alternatives.

Lazy.js videos

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Underscore.js videos

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Introduction to Underscore.JS

Category Popularity

0-100% (relative to Lazy.js and Underscore.js)

Lazy.js

Underscore.js

Development Tools
5 5%
Development Tools
95% 95
Javascript UI Libraries
5 5%
Javascript UI Libraries
95% 95
Front-End Frameworks
100 100%
Front-End Frameworks
0% 0
Libraries And Widgets
0 0%
Libraries And Widgets
100% 100

User comments

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Social recommendations and mentions

Based on our record, Underscore.js seems to be a lot more popular than Lazy.js. While we know about 23 links to Underscore.js, we've tracked only 1 mention of Lazy.js. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Lazy.js mentions (1)

  • Opening a big json file on mobile
    If it'd be node there'd be some solution I know, but in vanilla js you might consider Lazy.js. Should work for you. Source: over 3 years ago

Underscore.js mentions (23)

  • JavaScript evolution: From Lodash and Underscore to vanilla
    Underscore was created by Jeremy Ashkenas (the creator of Backbone.js) in 2009 to provide a set of utility functions that JavaScript lacked at the time. It was also created to work with Backbone.js, but it slowly became a favorite among developers who needed utility functions that they could just call and get stuff done with without having to worry about the inner implementations and browser compatibility. - Source: dev.to / 6 months ago
  • KlongPy: High-Performance Array Programming in Python
    There was a step-change improvement for me when I tried expressing some JS patterns via `underscore.js` instead of procedurally: eg: http://underscorejs.org/#each Thinking of something as `each | map | filter | sum` is waaay less buggy than writing bespoke procedural code to do the same thing. No doubt there is a "cost" to it as well, but the _abstraction_ is valuable. Now, if there were a "compiler" which could... - Source: Hacker News / 6 months ago
  • 100+ Must-Have Web Development Resources
    Underscore.js: A utility library that offers a full set of functional programming helpers without extending any built-in JavaScript objects. - Source: dev.to / 8 months ago
  • Mastering Node.js
    Underscore contains just about every core utility method you want. - Source: dev.to / 11 months ago
  • 8 NPM Packages for JavaScript Beginners [2024][+tutorials]
    Not too far behind is Underscore.js, another utility library that's all about enhancing your JavaScript mojo. Whether you're dealing with arrays, objects, or strings, Underscore has got something for you. It's like Lodash's sibling, offering similar functionalities but with its own flair. The choice between them is like picking between chocolate and vanilla - it really comes down to personal taste. - Source: dev.to / about 1 year ago
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What are some alternatives?

When comparing Lazy.js and Underscore.js, you can also consider the following products

Ramda - Javascript Utilities & Libraries, Backend Development, and Frontend Development

jQuery - The Write Less, Do More, JavaScript Library.

Lo-Dash - Lo-Dash is a drop-in replacement for Underscore.

React Native - A framework for building native apps with React

Babel - Babel is a compiler for writing next generation JavaScript.

Composer - Composer is a tool for dependency management in PHP.

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