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Can anyone let me know if using cloneElement (on exist element instance) or createElement (on react Element class) which one is better in term of performance?
Sometimes cloning something is faster than create new instance. Please let me know. Thanks
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React. cloneElement() is useful when you want to add or modify the props of a parent component's children while avoiding unnecessary duplicate code.
createElement()Create and return a new React element of the given type. The type argument can be either a tag name string (such as 'div' or 'span' ), a React component type (a class or a function), or a React fragment type.
cloneElement lets you create a new React element using another element as a starting point.
Using cloneElement will be usually be faster because you only need to instantiate one initial component.
This jsperf test shows cloneElement to be nearly twice as fast as createElement for Chromium 45 on Linux:
cloneElement ~1.7m ops/secondcreateElement ~0.85m ops/secondIf you have a base component that you can clone without changing, then using cloneElement is a clear choice, both semantically and in terms of performance.
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