20 lines
354 B
Markdown
20 lines
354 B
Markdown
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```html run height=100
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<!DOCTYPE html>
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<html>
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<body>
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<div data-widget-name="menu">Choose the genre</div>
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<script>
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// getting it
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let elem = document.querySelector('[data-widget-name]');
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// reading the value
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alert(elem.dataset.widgetName);
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// or
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alert(elem.getAttribute('data-widget-name'));
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</script>
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</body>
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</html>
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```
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