尝试从输入中排除减号和加号,但它出错了
handleChange(event) {
const value = event.target.value.replace(/\+|-/ig, '');
this.setState({financialGoal: value});
}
Run Code Online (Sandbox Code Playgroud)
渲染输入代码
<input style={{width: '150px'}} type="number" value={this.state.financialGoal} onChange={this.handleChange}/>
Run Code Online (Sandbox Code Playgroud)