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Formatting test 1
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| .idea |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <link rel="stylesheet" href="style.css"> | |
| </head> | |
| <body> | |
| <h1>Formatting test 1 (nonexistent class)</h1> | |
| <div style="padding: 10px;"> | |
| <button type="button" id="theButton">Go!</button> | |
| </div> | |
| <div style="padding: 10px;"> | |
| <pre id="theDisplay">Total:</pre> | |
| </div> | |
| <div id="container" tabindex="0"> | |
| <script src="script.js"></script> | |
| </body> | |
| </html> |
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| (function () { | |
| let $ = document.querySelector.bind(document) | |
| let theContainer = $('#container') | |
| let theButton = $('#theButton') | |
| let theDisplay = $('#theDisplay') | |
| let tableHTML = '' | |
| for (let i = 0; i < 50; i++) { | |
| tableHTML += '<div class = "row">' | |
| for (let j = 0; j < 10; j++) { | |
| tableHTML += '<div class = "column">' | |
| for (let k = 0; k < 500; k++) { | |
| tableHTML += '<div class = "cell"></div>' | |
| } | |
| tableHTML += '</div>' | |
| } | |
| tableHTML += '</div>' | |
| } | |
| theContainer.innerHTML = tableHTML | |
| let height = theContainer.offsetHeight; | |
| let count = 0 | |
| theButton.addEventListener('click', () => { | |
| requestAnimationFrame(() => { | |
| height = theContainer.offsetHeight; | |
| theDisplay.innerText = 'Total:' | |
| requestAnimationFrame(() => { | |
| performance.mark('start') | |
| theContainer.classList.add('nonexistent-class') | |
| height = theContainer.offsetHeight; | |
| performance.mark('end') | |
| performance.measure(`total_${++count}`, 'start', 'end') | |
| theContainer.classList.remove('nonexistent-class') | |
| theDisplay.innerText = `Total: ${performance.getEntriesByName(`total_${count}`).slice(-1)[0].duration}ms` | |
| }) | |
| }) | |
| }) | |
| })() |
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| body { | |
| margin: 0 auto; | |
| padding: 10px; | |
| max-width: 600px; | |
| } | |
| .bg-blue { | |
| background-color: royalblue; | |
| } | |
| .bg-red { | |
| background-color: crimson; | |
| } | |
| .column { | |
| display: inline-block; | |
| background: gray; | |
| } | |
| .row { | |
| background: darkgray; | |
| } | |
| .cell { | |
| display: inline-block; | |
| background: blue; | |
| width: 1px; | |
| height: 1px; | |
| margin-right: 1px; | |
| vertical-align: top; | |
| } | |
| pre { | |
| font-size: 32px; | |
| } | |
| button { | |
| font-size: 18px; | |
| } |
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