'How to add size as custom attribute in React?
https://reactjs.org/blog/2017/09/08/dom-attributes-in-react-16.html
As per this documentation, we do not need to have a data- as a prefix for a custom HTML attribute in JSX to appear in the actual DOM element without warning.
But when I try and use<div size="hello">my div element</div> it appears as <div>my div element</div> in actual DOM.
When I try <div Size="hello">my div element</div> then it appears correctly but it gives a warning.
What is the right way of adding size as a custom property on the HTML attribute?
example codepen here
Solution 1:[1]
Since the "size" attribute is a valid attribute for other tags but does not exist on the <div> element React strips it. In the documentation you referenced, it does state that you can prefix attributes with data-. "Just like before, React lets you pass data- and aria- attributes freely".
For obvious reasons, this is not recommended and should probably only be done if non-react scripts utilize the attribute.
To answer the question, if you have to store data in attributes, the best option is to prefix it with data-.
Sources
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Source: Stack Overflow
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