New typeAttributeIntroduction
First let us look at a table
其中标有`红色5`的代表`HTML5`中推出的
## Test code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
form {
width: 80%;
background-color: #F7F7F7;
}
label {
display: block;
width: 80%;
margin: 0 auto;
font-size: 30px;
font-weight: bold;
}
input {
display: block;
width: 80%;
margin: 0 auto;
}
</style>
</head>
<body>
<form action="">
<fieldset>
<legend>测试type属性
</legend>
<label for="">color:
</label>
<input type="color">
<label for="">date:
</label>
<input type="date">
<label for="">datetime:
</label>
<input type="datetime">
<label for="">datetime-local:
</label>
<input type="datetime-local">
<label for="">month:
</label>
<input type="month">
<label for="">week:
</label>
<input type="week">
<label for="">time:
</label>
<input type="time">
<label for="">email:
</label>
<input type="email">
<label for="">number:
</label>
<input type="number">
<label for="">range:
</label>
<input type="range">
<label for="">search:
</label>
<input type="search">
<label for="">tel:
</label>
<input type="tel">
<input type="submit">
</fieldset>
</form>
</body>
</html>
Running effect
##Input new type attribute.png
Points to note for the new type attribute
* 点击不同type的input标签会有不一样的弹出内容 * 如果发现w3cschool内容不全,建议去MDN搜索 * 并不是每一个新type属性,在PC端都有不同的显示 * color, date, number 这些效果较为明显
- Compatibility issues
- But the support effect on mobile devices is better, you can send the page to the mobile phone for testing
- In actual development, you can choose to use it according to your needs
- Due to ie Compatibility issues, the display effect is different in different browsers
It is impossible for users to input everything correctly. For example,
email address, ``phone lengthAdd the query location of the, etc. may make input errors. Just imagine, when the user has worked hard to enter more than 10 forms. Content, click submit. Due to an input error, the content has been cleared.
w3cSchool View location
api##[w3cSchool_
New
typeattribute ofinput
inH5since With format verification
- Sample code:
- button
, if the entered <a href="http://www.php.cn/code/5991.html" target="_blank">email</a> format is incorrect, a prompt messageemail - label will pop up and It will not verify whether the content is empty. You need to pay attention to this
- Submit
##email comes with a prompt.png
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="">
email:<input type="email" name="userEmail">
<br/>
<input type="submit">
</form>
</body>
</html>require
d attribute
For tags that do not have their own verification effect, you need to manually add attributes to increase verification
##Usage:
-
You only need to add the
required attribute, no assignment is required -
Sample code: -
When the
control clicks submit without inputting any content, a pop-up will appear Tip##requiredproperty.png
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="">
email:<input type="email" name="userEmail">
<br/>
tel:<input type="tel" required>
<br/>
<input type="submit">
</form>
</body>
</html>pattern Custom
Validation Rules
required tag can only verify whether the content is empty. If you want to verify more accurately, you need to customize the verification rules
Usage:
-
Add the required
tag# to the elements where custom validation rules need to be added. - ##Use
regular expressions
Write validation rules When the content we enter does not match the verification conditions, the corresponding prompt will pop up
- ##Custom verification.png
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="">
email:<input type="email" name="userEmail">
<br/>
tel:<input type="tel" required pattern="[0-9]{3}">
<br/>
<input type="submit">
</form>
</body>
</html>自定义验证信息
系统的提示消息只能够提示格式错误,如果想要更为详细的就需要我们通过js来自定义了
使用方法:
注册事件:
oninput:输入时,oninvalid验证失败设置自定义信息
dom.setCustomValidity("这里输入提示信息");示例代码:
输入时,会弹出
oninput绑定的代码
输入中.png
-
验证失败时,会弹出
oninvalid绑定的代码
验证失败.png
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="">
email:<input type="email" name="userEmail">
<br/>
tel:<input type="tel" required pattern="[0-9]{3}" id="telInput">
<br/>
<input type="submit">
</form>
</body>
</html>
<script>
var telInput = document.getElementById("telInput");
// 正在输入时
telInput.oninput=function () {
this.setCustomValidity("请正确输入哦");
}
// 验证失败时
telInput.oninvalid=function(){
this.setCustomValidity("请不要输入火星的手机号好吗？");
};
</script>总结
优点:
html5自带的验证使用便捷
不需要额外的js框架
缺点:
兼容性问题
如果想要兼容所有浏览器,建议使用
js验证框架
【相关推荐】
1. 免费h5在线视频教程
2. HTML5 完整版手册
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