stateful – Tarik Billa

ReactJS difference between stateful and stateless

December 5, 2023 by Tarik

Yes, that is sort of the difference. Except with the stateful component you can also change the state, using this.setState for example: var React = require(‘react’); var Header = React.createClass({ getInitialState: function() { return { imageSource: “mypicture.png” }; }, changeImage: function() { this.setState({imageSource: “differentpicture.png”}); }, render: function() { return( <img src={this.state.imageSource} onClick={this.changeImage.bind(this)} /> ); } … Read more

How to dispose of my Stateful Widget completely?

May 1, 2023 by Tarik

I assume the problem is caused by the response from the server arrives after the widget is disposed. Check if the widget is mounted before you call setState. This should prevent the error you are seeing: // Before calling setState check if the state is mounted. if (mounted) { setState (() => _noDataText=”No Data”); }

Stateless vs Stateful

December 24, 2022 by Tarik

Stateless means there is no memory of the past. Every transaction is performed as if it were being done for the very first time. Stateful means that there is memory of the past. Previous transactions are remembered and may affect the current transaction. Stateless: // The state is derived by what is passed into the … Read more