LABjs (loading and blocking JavaScript) is an on-demand JavaScript loader, capable of loading any JavaScript resource, from any location, into any page, at any time.

By default, the library helps loading all scripts in parallel (it is possible to define priorities) which is a great speed improvement that we usually see with asynchronous scripts.

LABjs

It works by removing the commonly-used <script> tags and calling every script from a LABjs function with the parameters wanted.

It is a must-try, specially for the websites that use many script tags for a better performance.

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