New typeAttributeIntroduction
First let us look at a table
其中標(biāo)有`紅色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>測試type屬性
</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
* 點(diǎn)擊不同type的input標(biāo)簽會(huì)有不一樣的彈出內(nèi)容 * 如果發(fā)現(xiàn)w3cschool內(nèi)容不全,建議去MDN搜索 * 并不是每一個(gè)新type屬性,在PC端都有不同的顯示 * color, date, number 這些效果較為明顯
- 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.miracleart.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>自定義驗(yàn)證信息
系統(tǒng)的提示消息只能夠提示格式錯(cuò)誤,如果想要更為詳細(xì)的就需要我們通過js來自定義了
使用方法:
注冊(cè)事件:
oninput:輸入時(shí),oninvalid驗(yàn)證失敗設(shè)置自定義信息
dom.setCustomValidity("這里輸入提示信息");示例代碼:
輸入時(shí),會(huì)彈出
oninput綁定的代碼
輸入中.png
驗(yàn)證失敗時(shí),會(huì)彈出
oninvalid綁定的代碼
驗(yàn)證失敗.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");
// 正在輸入時(shí)
telInput.oninput=function () {
this.setCustomValidity("請(qǐng)正確輸入哦");
}
// 驗(yàn)證失敗時(shí)
telInput.oninvalid=function(){
this.setCustomValidity("請(qǐng)不要輸入火星的手機(jī)號(hào)好嗎？");
};
</script>總結(jié)
優(yōu)點(diǎn):
html5自帶的驗(yàn)證使用便捷
不需要額外的js框架
缺點(diǎn):
兼容性問題
如果想要兼容所有瀏覽器,建議使用
js驗(yàn)證框架
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