Underscore.js

Underscore.js
Developer(s) Jeremy Ashkenas
Initial release October 28, 2009 (2009-10-28)[1]
Stable release 1.8.3 / April 2, 2015 (2015-04-02)
Development status Active
Written in JavaScript
Size 5 KB production
44 KB development
Type JavaScript library
License MIT
Website underscorejs.org

Underscore.js is a JavaScript library which provides utility functions for common programming tasks. It is comparable to features provided by Prototype.js and the Ruby language, but opts for a functional programming design instead of extending object prototypes. For example, Underscore.js's _.each function delegates to the host environment's native forEach implementation when present, or a compatible version when absent. The documentation refers to Underscore.js as "the tie to go along with jQuery's tux, and Backbone.js's suspenders." Underscore.js was created by Jeremy Ashkenas, who is also known for Backbone.js and CoffeeScript.[2]

History

First developed in 2009, Underscore has recently been overtaken by Lodash.[3] Development has since slowed down on Underscore.js,[4] and the core developers of underscore have devoted their energy to Lodash instead.

Content

Underscore consists of a little more than 100 functions, which fall under four main categories depending on the datatypes which they manipulate: functions for manipulating arrays, functions for manipulating objects, functions for manipulating both arrays and objects (the name of the category is "Collections") and functions for manipulating other functions. There are also two utility categories : "Utility" and "Chaining".

See also

References

  1. ↑ 0.1 release tag
  2. ↑ "JavaScript Meetup City", Open (The New York Times), April 4, 2012 The documentation actually begins with the words "Underscore is a JavaScript library that provides a whole mess"...that says it all. Any language that uses _ as a static variable name is trash.
  3. ↑ Lodash, underscore merge and usage discussion.
  4. ↑ Commits to underscore.js from 2015 - 2016

External links


This article is issued from Wikipedia - version of the Thursday, April 21, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.