23 lines
559 B
HTML
23 lines
559 B
HTML
<!DOCTYPE html>
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<body>
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<style>
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textarea:valid {
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background-color: lime;
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}
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textarea:invalid {
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background-color: red;
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}
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</style>
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<script src="../resources/runner.js"></script>
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<textarea maxlength=2147483647 id="container"></textarea>
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<script>
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var container = document.getElementById('container');
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container.focus();
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PerfTestRunner.measureRunsPerSecond({run: function() {
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for (var i = 0; i < 500; ++i)
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document.execCommand('insertText', false, 'A quick brown fox jumps over the lazy dog.\n');
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container.value = '';
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}});
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</script>
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</body>
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