套件：libjs-headjs（1.0.3+dfsg.1-1）

javascript libraryt for resource loading

headjs is a javascript library that has the following features:

 * Speed up your apps: Load JS & CSS asynchronously and in parallel, but
   execute them in order
 * Load one asset if a condition is met, else fallback and load a different
   one
 * Manage script dependencies, and execute callbacks once they are loaded
 * Cross-browser compatible <<pseudo media-queries>> let you code against
   different resolutions & devices
 * Fix quirks in specific browsers by quickly applying dedicated CSS/JS logic
 * Detect various browsers & their versions
 * Check if the client supports a certain Browser, HTML5, or CSS3 feature
 * Automatically generates JS and CSS classes for browsers & features that
   where detected
 * Automatically generates CSS classes, to know what page or section a user
   is viewing
 * Know if the user is in landscape or portrait mode
 * Or whether the client is using a mobile or desktop device
 * Get old browsers to support HTML5 elements like nav, sidebar, header,
   footer

Node.js is an event-based server-side JavaScript engine.

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