Q
How should custom data be stored on an HTML element for use by JavaScript?
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A
With data-* attributes, such as data-station-id="42", read through element.dataset.stationId
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B
In the class name only
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C
With any made-up attribute, such as station="42"
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D
Inside HTML comments
Correct Answer:
A. With data-* attributes, such as data-station-id="42", read through element.dataset.stationId
Explanation:
data-* attributes are valid HTML. Note that dataset converts names from kebab-case to camelCase.
