//the following lines checks if the worker already exists,
//if not - it creates a new web worker object and runs the code in
"demo_workers.js":
if (typeof(w) == "undefined") {
w = new Worker("demo_workers.js");
}
//then we can send and receive messages from the web worker
//add an "onmessage" event listener to the web worker.
w.onmessage = function(event){
document.getElementById("result").innerHTML = event.data;
};
Web Workers: Create a Web Worker Object —
Structure map
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Web Workers: Create a Web Worker Object —
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