webwork.js

Execute Web Workers without external files

Usage is as really simple:

callableWebworker = webwork(callback);

callback takes a single data argument and should return the result
callableWebworker is a function that takes the data to send and
a node style callback ie function(err, result) {}

JSBin Demo

Example

var goodWorker = webwork(function (data) {
    return "!!" + data  + "!!";
});
var badWorker = webwork(function (data) {
    return "!!" + data + imNotDefined + "!!";
});

goodWorker("Test123", function(err, result) {
    if (err) return alert("goodWorker Errored with " + err.message);
    alert("first goodWorker returned with " + result);
});
goodWorker("Test123", function(err, result) {
    if (err) return alert("goodWorker Errored with " + err.message);
    alert("second goodWorker returned with " + result);
});
badWorker("Test456", function(err, result) {
    if (err) return alert("badWorker Errored with " + err.message);
    alert("badWorker returned with " + result);
});
alert("Since webworkers are async this should happen first.\nThe callbacks may fire in any order");

The astute may realize that they can access the event variable inside the callback.
Also since the callback is stringified and injected into the webworker, you don't have access to any vars in scope