Created
August 26, 2011 08:49
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[HTML5]WebWorkers
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| <!DOCTYPE HTML> | |
| <html lang="ja"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>WebWorkers</title> | |
| </head> | |
| <body> | |
| <section id="wrapper"> | |
| <header> | |
| <h1>WebWorkers</h1> | |
| </header> | |
| <article> | |
| Input Number:<input type="text" id="num" value="1000000000"> | |
| <button id="btnCalc">Calculate</button> | |
| </article> | |
| <script> | |
| (function(){ | |
| // Workerを生成 | |
| var worker = new Worker('worker.js'); | |
| // Workerから結果を受け取る | |
| worker.onmessage = function(event) { | |
| // event.dataでWorkerからのデータを受け取る | |
| alert("Sum:" + event.data); | |
| }; | |
| var btnCalc = document.getElementById('btnCalc'); | |
| btnCalc.onclick = function(){ | |
| var num = parseInt(document.getElementById('num').value); | |
| // ワーカに数値を渡す | |
| worker.postMessage(num); | |
| }; | |
| })(); | |
| </script> | |
| </section> | |
| </body> | |
| </html> |
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| // onmessageでメッセージを受け取る | |
| onmessage = function(event) { | |
| // event.dataでWorkerに渡されたデータを受け取る | |
| var num = event.data; | |
| var result = 0; | |
| for (var i = 0; i <= num; i++) { | |
| result += i; | |
| } | |
| // 結果を返す | |
| postMessage(result); | |
| } |
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