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70 lines
2.0 KiB
HTML
70 lines
2.0 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>Selection Test</title>
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</head>
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<body>
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<select>
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<option value="black">Black</option>
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<option value="blue">Blue</option>
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<option value="brown">Brown</option>
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<option value="cyan">Cyan</option>
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<option value="gray">Gray</option>
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<option value="green">Green</option>
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<option value="indigo">Indigo</option>
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<option value="magenta">Magenta</option>
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<option value="orange">Orange</option>
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<option value="pink">Pink</option>
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<option value="purple">Purple</option>
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<option value="red">Red</option>
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<option value="violet">Violet</option>
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<option value="white" id="whiteOption">White</option>
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<option value="yellow">Yellow</option>
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</select>
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<script>
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window.result = {
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onInput: null,
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onChange: null,
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onBubblingChange: null,
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onBubblingInput: null,
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};
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let select = document.querySelector('select');
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function makeEmpty() {
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for (let i = select.options.length - 1; i >= 0; --i) {
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select.remove(i);
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}
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}
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function makeMultiple() {
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select.setAttribute('multiple', true);
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}
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select.addEventListener('input', () => {
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result.onInput = Array.from(select.querySelectorAll('option:checked')).map((option) => {
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return option.value;
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});
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}, false);
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select.addEventListener('change', () => {
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result.onChange = Array.from(select.querySelectorAll('option:checked')).map((option) => {
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return option.value;
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});
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}, false);
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document.body.addEventListener('input', () => {
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result.onBubblingInput = Array.from(select.querySelectorAll('option:checked')).map((option) => {
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return option.value;
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});
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}, false);
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document.body.addEventListener('change', () => {
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result.onBubblingChange = Array.from(select.querySelectorAll('option:checked')).map((option) => {
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return option.value;
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});
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}, false);
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</script>
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</body>
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</html>
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