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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Web Workers</title> | |
| <meta name="viewport" content="width=device-width"> | |
| <link rel="stylesheet" href="../video-pages/main.css"> | |
| </head> | |
| <body> | |
| <header> | |
| <h1>Web Workers</h1> | |
| </header> | |
| <main> | |
| <pre id="output"></pre> | |
| </main> | |
| <script> | |
| let output = document.getElementById('output'); | |
| let worker; | |
| document.addEventListener('DOMContentLoaded', init); | |
| function init(){ | |
| worker = new Worker('web-work.js'); | |
| worker.addEventListener('message', workerMessaged); | |
| worker.addEventListener('error', workerError); | |
| //worker.postMessage('Get Started'); | |
| document.body.addEventListener('click', ()=>{ | |
| //send another message to the worker | |
| //worker.postMessage('Other'); | |
| worker.postMessage({'do':'fetch'}); | |
| }) | |
| } | |
| function workerMessaged(ev){ | |
| let data = ev.data; | |
| output.textContent += JSON.stringify(data, null, 2) + '\n'; | |
| } | |
| function workerError(err){ | |
| console.log(err.message, err.filename); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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