picking jQuery 1.9 or 2.0 using JavaScript and Require.JS

Question

jQuery 2.0 is increasingly mature: http://blog.jquery.com/2013/03/01/jquery-2-0-beta-2-released/

jQuery 2.0 breaks compatibility with older browsers, so one must know wh

Answer 1

Adaptation of niaccurshi's answer to AMD spec.

// Do this before your first use of jQuery.

var pathToJQuery
if('querySelector' in document
    && 'localStorage' in window
    && 'addEventListener' in window) {
    pathToJQuery = '//cdn/jQuery2.0'
} else {
    pathToJQuery = '//cdn/jQuery1.9'
}

require.configure({'paths':{
    'jquery': pathToJQuery
}})

require(['jquery'], function($){ /* you get the one you need here */ })