Does componentWillUpdate() always get invoked?

Frequently Asked Questions React.js FAQ
1

Question

In the context of this exercise, does the componentWillUpdate() method always get invoked?

Answer

No, not always. The componentWillUpdate() method is only invoked immediately after the shouldComponentUpdate() method returns true.

If shouldComponentUpdate() returns false, then all the following methods, componentWillUpdate(), render(), and componentDidUpdate() will not be invoked.

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For anyone doing the course: Please note that componentWillUpdate has been deprecated.

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