| <!doctype html> |
| <title>Run async code on a worker helper</title> |
| <script> |
| const workerCode = ` |
| onmessage = function(e) { |
| let AsyncFunction = Object.getPrototypeOf(async function(){}).constructor; |
| let receivedFunction = new AsyncFunction(e.data); |
| receivedFunction().then(workerResult => {postMessage(workerResult);}); |
| } |
| ` |
| const workerBlob = new Blob ([workerCode], {type: 'text/javascript'}); |
| const worker = new Worker(window.URL.createObjectURL(workerBlob)); |
| |
| async function runOnWorkerAndWaitForResult(code) { |
| worker.postMessage(code); |
| return new Promise((resolve, reject) => { |
| worker.onmessage = result => { |
| resolve(result.data); |
| } |
| worker.onerror = error => { |
| reject(error); |
| } |
| }); |
| } |
| </script> |
