Data not in state or props not fire render
by Quentin Fonteneau
February 15, 2017
HTML
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.4.2/react.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.4.2/react-dom.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.js"></script>
<div id="container">
<!-- This element's contents will be replaced with your component. -->
</div>
Babel + JSX
"use strict";
class App extends React.Component {
constructor(props){
super(props);
let myStates = { 'titre' : 'Titre',
'detail' : 'Détail de ma tâche',
'termine' : false};
this.state = myStates;
}
onSubmit = (event) => {
console.log(JSON.stringify(this.state));
}
onReset = (event) => {
}
onChange = (event) => {
let myNewState = {};
if(event.target.name == 'termine') {
myNewState[event.target.name] = !this.state.termine;
}
else {
myNewState[event.target.name] = event.target.value;
}
this.setState(myNewState);
}
render() {
return (
<div>
<label htmlFor="titre">Titre : </label>
<input type="text" name="titre" id="titre" value={this.state.titre} onChange={this.onChange} />
<br />
<label htmlFor="detail">Détail</label><br />
<textarea name="detail" name="detail" id="detail" value={this.state.detail} onChange={this.onChange} />
<br />
<label htmlFor="priorite">Priorité : </label><br />
<select name="priorite" id="priorite"></select>
<br />
<label htmlFor="termine">Terminée ?</label>
<input type="checkbox" name="termine" id="termine" checked={this.state.termine} onClick={this.onChange} />
<br />
<label htmlFor="datedefin">Date de fin : </label>
<input type="date" name="datedefin" id="datedefin" value="" />
<br />
<input type="reset" value="Reset" onClick={this.onReset} />
<input type="submit" value="Submit" onClick={this.onSubmit} />
</div>
)
}
}
ReactDOM.render(
<App />,
document.getElementById('container')
);