Package: libjs-underscore Source: underscore Version: 1.13.4~dfsg+~1.11.4-3 Architecture: all Maintainer: Debian Javascript Maintainers Installed-Size: 349 Recommends: javascript-common, libjs-jquery Section: javascript Priority: optional Multi-Arch: foreign Homepage: https://underscorejs.org/ Description: JavaScript's functional programming helper library 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. . Underscore provides 60-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.