I have a button I'm using functional component in reactJs and i want to get button value on click, how can i get this?
My Code:-
const Forms = () => { const handleClick =(event) =>{ const getSameValue = event.target.value console.log(getSameValue); } return ( <button onClick={handleClick}>Test</button> ); };
Thanks for your Efforts!
What you're doing would mostly work, although you want currentTarget
, not target
(you'd see the difference if your button
had a span
around its text), but your button
doesn't have any value
attribute, so its value is ""
. The value of an input
or button
is accessed via the value
attribute (and optionally, for some kinds of input
, valueAsNumber
or valueAsDate
). Your button has text content, but no value.
const Forms = () => { const handleClick =( event) => { const theValue = event.currentTarget.value; console.log("the value:", theValue); const theText = event.currentTarget.textContent; console.log("the text: ", theText); }; return ( <button value="this is the value" onClick={handleClick}>Test</button> ); }; ReactDOM.render(<Forms />, document.getElementById("root"));
<div id="root"></div> <script src="https://cdnjs.cloudflare.com/ajax/libs/react/17.0.2/umd/react.development.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/17.0.2/umd/react-dom.development.js"></script>
您必须在按钮标签上定义一个“值”属性,例如:
<button value='button value' onClick={handleClick}>Test</button>
You should add a value
attribute to the button component and either use hooks or state to set the value and access it throughout the function/class.
Adding value
attribute to the button:
<button value="someVal" onClick={handleClick}>Test</button>
Create and store button value using hooks
const [btn,btnVal] = useState("")
handleClick
const handleClick =(event) =>{
const getSameValue = event.currentTarget.value
btnVal(getSameValue)
}
For class-based components:
export default class App extends React.Component {
//const [count, setCount] = useState("");
constructor(){
super()
this.state={
val:""
}
}
handleClick = (event) =>{
this.setState({val:event.currentTarget.value})
}
render(){
return (
<div>
<p>Button value: {this.state.val}</p>
<button value="abcd" onClick={this.handleClick}>
Click me
</button>
</div>
);
}
}
Further, you could access the button's value directly using the state or hook variable.
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