1- componentWillMount() – get called only once component initiated i.e. after constructure and right place to call setState in initial stage.
2- componentDidMount() – get called only once after component render first time.
3- componentWillReceiveProps() – Invoked as soon as the props are received from the parent class and before another render is called.
4- shouldComponentUpdate() – Returns true or false value based on certain conditions. If you want your component to update, return true else return false. By default, it returns false.
5- componentWillUpdate() – Called just before rendering takes place in the DOM.
6- componentDidUpdate() – Called immediately after rendering takes place.
7- componentWillUnmount() – get Called just before to component unmount from the DOM. It is used to unsubcribe the listner/event to avoid memory leak, etc.
2- componentDidMount() – get called only once after component render first time.
3- componentWillReceiveProps() – Invoked as soon as the props are received from the parent class and before another render is called.
4- shouldComponentUpdate() – Returns true or false value based on certain conditions. If you want your component to update, return true else return false. By default, it returns false.
5- componentWillUpdate() – Called just before rendering takes place in the DOM.
6- componentDidUpdate() – Called immediately after rendering takes place.
7- componentWillUnmount() – get Called just before to component unmount from the DOM. It is used to unsubcribe the listner/event to avoid memory leak, etc.
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