以下代码是最奇怪的错误。
/src/components/competitions/TheVaultform.js第5行:React Hook 在函数“ contactform”中调用“ useForm”,该函数都不是React 函数组件或自定义的React Hook函数 反应钩/钩规则
搜索关键字以详细了解每个错误。
我刚安装了react-hook-form并运行了演示代码。
import React from 'react';
import { useForm } from 'react-hook-form';
export default function contactform() {
const { register, handleSubmit, errors } = useForm();
const onSubmit = data => console.log(data);
console.log(errors);
return (
<form onSubmit={handleSubmit(onSubmit)}>
<input type="text" placeholder="First name" name="First name" ref={register({required: true, maxLength: 80})} />
<input type="text" placeholder="Last name" name="Last name" ref={register({required: true, maxLength: 100})} />
<input type="text" placeholder="Email" name="Email" ref={register({required: true, pattern: /^\S+@\S+$/i})} />
<input type="tel" placeholder="Mobile number" name="Mobile number" ref={register({required: true, minLength: 6, maxLength: 12})} />
<select name="Title" ref={register({ required: true })}>
<option value="Mr">Mr</option>
<option value="Mrs">Mrs</option>
<option value="Miss">Miss</option>
<option value="Dr">Dr</option>
</select>
<input name="Developer" type="radio" value="Yes" ref={register({ required: true })}/>
<input name="Developer" type="radio" value="No" ref={register({ required: true })}/>
<input type="submit" />
</form>
);
}
答案 0 :(得分:2)
它不能识别React组件,因为它应该以大写字母开头,因此请将组件更改为:
- (void)layoutSubviews
{
[super layoutSubviews];
for (UIView* subview in self.superview.subviews)
{
if (subview != self && subview.layer.cornerRadius > 0)
{
subview.layer.cornerRadius = self.cornerRadius; // cornerRadius - your custom property
subview.clipsToBounds = YES;
}
}
}