Skip to content

Instantly share code, notes, and snippets.

/getScript.js

Created December 21, 2012 22:17
Show Gist options

  • Select an option

    Learn more about clone URLs
  • Save anonymous/4356236 to your computer and use it in GitHub Desktop.

Select an option

Learn more about clone URLs
Save anonymous/4356236 to your computer and use it in GitHub Desktop.
Download ZIP

Revisions

  1. @invalid-email-address Anonymous created this gist Dec 21, 2012.
    36 changes: 36 additions & 0 deletions getScript.js
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,36 @@
    // how jQuery getScript should work!
    function getScript (path, callback) {
    if (!getScript.loaded) {
    getScript.loaded = {};
    $('script').each(function () {
    var result = $.Deferred();
    getScript.loaded[$(this).attr('src')] = result.promise();
    result.resolve();
    });
    }
    if (!getScript.loaded[path]) {
    var result = $.Deferred();
    var script = document.createElement("script");
    script.async = "async";
    script.type = "text/javascript";
    script.src = path;
    script.onload = script.onreadystatechange = function(_, isAbort) {
    if (!script.readyState || /loaded|complete/.test(script.readyState)) {
    if (!isAbort) {
    result.reject();
    } else {
    result.resolve();
    }
    }
    };
    script.onerror = function () {
    result.reject();
    };
    $("head")[0].appendChild(script);
    getScript.loaded[path] = result.promise();
    }
    if (callback) {
    getScript.loaded[path].done(callback);
    }
    return getScript.loaded[path];
    }