use*_*964 3 flash-message reactjs
我的任务是在单击提交按钮时显示 flash 消息(“成功创建”)。[单击提交按钮,数据将存储在服务器中]我已经运行了这个命令 npm i react-flash-message。
<form onSubmit={this.handleSubmit}>
<input type="submit" value="Submit" />
</form>
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处理提交函数:
handleSubmit(event) {
fetch('url', {
method: 'POST',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify({
name: this.state.name,
description: this.state.description
})
}).then(res => {
return res.json()
})
.then(data => console.log(data))
.then(() => {
window.location.reload(false)
/* return (
<div>
<FlashMessage duration={5000}>
<strong>I will disapper in 5 seconds!</strong>
</FlashMessage>
</div>
) */
})
/* window.flash('record has been created successfully!', 'success') */
.catch(error => console.log('ERROR from create component'))
}
}
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我已经评论了我试图显示 Flash 消息的代码。但它不起作用。请有人帮我显示 Flash 消息。
小智 6
根据 react-flash-message page ,您应该在渲染中包含 FlashMessage。因此,当您想显示 FlashMessage 时,您可能需要将标志变量设置为 true
示例:在您的渲染中:
<form onSubmit={this.handleSubmit}>
<input type="submit" value="Submit" />
{ this.state.showMessage &&
<div>
<FlashMessage duration={5000}>
<strong>I will disapper in 5 seconds!</strong>
</FlashMessage>
</div>
}
</form>
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处理提交功能:
handleSubmit(event) {
this.setState({ showMessage: false });
fetch('url', {
method: 'POST',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify({
name: this.state.name,
description: this.state.description
})
}).then(res => {
return res.json()
})
.then(data => console.log(data))
.then(() => {
this.setState({ showMessage: true });
})
/* window.flash('record has been created successfully!', 'success') */
.catch(error => console.log('ERROR from create component'))
}
}
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如果您正在使用类,则主要功能:
constructor(props) {
super(props);
this.state = {
showMessage: false
};
}
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https://www.npmjs.com/package/react-flash-message
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