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Document.forms usage examples introduction_javascript skills

WBOY
WBOYOriginal
2016-05-16 16:43:071889browse

Overview

forms returns a collection (an HTMLCollection object) that contains all form elements in the current document.

Grammar

var collection = document.forms;

Example

Get form information

<script type="text/javascript"> 
$(function(){ 
var thisForm = document.forms['form1']; //获取name为form1的form表单 
//或者 
//var thisForm = document.forms[0]; //获取第一个form表单 
console.info(thisForm.username.value); //输出表单name属性值为form1的 username的值 
console.info(thisForm.address.value); 
document.forms[0].submit(); //表单提交 
}) 
</script>
<body> 
<!-- 以下为三个简单的form表单 --> 
<form action="x" name="form1" > 
<input type="text" name="username" value="zhangsan" /> 
<input type="text" name="address" value="beijing" /> 
</form> 

<form action="x" name="form2" > 
</form> 

<form action="x" name="form3" > 
</form> 
</body>
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