How to get input text value on click in ReactJS
First of all, you can't pass to alert second argument, use concatenation instead
alert("Input is " + inputValue);
Example
However in order to get values from input better to use states like this
var MyComponent = React.createClass({
getInitialState: function () {
return { input: '' };
},
handleChange: function(e) {
this.setState({ input: e.target.value });
},
handleClick: function() {
console.log(this.state.input);
},
render: function() {
return (
<div>
<input type="text" onChange={ this.handleChange } />
<input
type="button"
value="Alert the text input"
onClick={this.handleClick}
/>
</div>
);
}
});
ReactDOM.render(
<MyComponent />,
document.getElementById('container')
);<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>
<div id="container"></div>There are two ways to go about doing this.
Create a state in the constructor that contains the text input. Attach an onChange event to the input box that updates state each time. Then onClick you could just alert the state object.
handleClick: function() { alert(this.refs.myInput.value); },