我试图使用react添加和删除输入字段。我已经成功地添加了文件,但不能删除字段,甚至不能触发警报!有人能看到我做错了什么吗?
let count = 0;
class RedirectURI extends React.Component {
constructor(props) {
super(props);
this.state = {
attributeForm: []
};
this.addAttributeForm();
}
removeAttribbuteForm(){
alert('boom!');
}
addAttributeForm() {
count=count+1;
console.log(count);
var array = this.state.attributeForm;
if (count >= 10){
document.getElementById('addURI').style.display = "none";
return false;
} else {
array.push(
<div>
<label htmlFor="redirect-URI">Redirect URI</label>
<input name="redirect-URI" />
<button className="remove-input" onClick= .
{this.removeAttributeForm.bind(this)}>remove</button>
</div>
);
this.setState({
attributeForm: array
});
}
}
render() {
return (
<div>
{
this.state.attributeForm.map(input => {
return input
})
}
<button id="addURI" onClick= .
{this.addAttributeForm.bind(this)}>Add Redirect URI</button>
</div>
);
}
}
ReactDOM.render(<RedirectURI />, document.getElementById('app'));误差
react-dom.production.min.js:157 Uncaught TypeError: Cannot read property 'bind' of undefined
at RedirectURI.addAttributeForm (pen.js:30)
at new RedirectURI发布于 2019-06-07 10:30:16
您的代码适用于小更正。请参阅这里
onClick=中有点removeAttributeForm。复制/粘贴原始函数名(即removeAttribbuteForm和两个bb)解决了所有错误https://stackoverflow.com/questions/56492437
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