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Can't access variables from dynamically loaded javascript

Answer 1

+3 A:

That is one problem, but it also takes time for the browser to download and parse the remote JS file — and it hasn't done that before you call console.log.

You need to delay things until the script has loaded.

This is easiest done by letting a library do the heavy lifting, jQuery has a getScript method that lets you pass a callback to run when the script has loaded.

David Dorward 2010-04-29 11:46:05

Answer 2

+3 A:

It is because you have to wait for the script to load. It is not synchronous like you would think. This may work for you:

include = function (url, fn) {
    var e = document.createElement("script");
    e.onload = fn;
    e.src = url;
    e.async=true;
    document.getElementsByTagName("head")[0].appendChild(e);
};

include("test.js",function(){
    console.log(foo);
});

David Murdoch 2010-04-29 11:47:25

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Can't access variables from dynamically loaded javascript

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