处理react的表单组件是很麻烦的事,因为我们想要让它变成受控组件,这导致往往处理一个表单组件就要重复代码,所以为了提供r-model的语法糖来应对这种情况,当然这也是就是react版的双向数据绑定
class App extends React.Component {
constructor(props) {
super(props);
this.state={
inputVale:"🍺🍺hello react-model"
}
}
render() {
const {inputVale} =this.state
return (
<div>
<input type="text" r-model={inputVale} />
</div>
)}
}
class App extends React.Component {
constructor(props) {
super(props);
this.state = {
inputVale: "hello react-model"
};
}
render() {
const {
inputVale
} = this.state;
return React.createElement("div", null, React.createElement("input", {
type: "text",
value: inputVale,
onChange: e => {
this.setState({
[`${this.state.inputVale}`]: e.target.value
});
}
}));
}
}
class App extends React.Component {
constructor(props) {
super(props);
this.state={
inputVale:"🍺🍺hello react-model"
}
}
alert=()=>{
window.alert(this.state.inputVale)
}
render() {
const {inputVale} =this.state
return (
<div>
<input onChange={this.alert} type="text" r-model={inputVale} />
</div>
)}
}
class App extends React.Component {
constructor(props) {
super(props);
_defineProperty(this, "alert", () => {
window.alert(this.state.inputVale);
});
this.state = {
inputVale: "🍺🍺hello react-model"
};
}
render() {
const {
inputVale
} = this.state;
return React.createElement("div", null, React.createElement("input", {
onChange: e => {
this.setState({
[`${this.state.inputVale}`]: e.target.value
});
this.alert(e);
},
type: "text",
value: inputVale
}));
}
}