The following methods are very commonly used, record them to free up some brain space~
document.title //设置文档标题等价于HTML的<title>标签 document.bgColor //设置页面背景色 document.fgColor //设置前景色(文本颜色) document.linkColor //未点击过的链接颜色 document.alinkColor //激活链接(焦点在此链接上)的颜色 document.vlinkColor //已点击过的链接颜色 document.URL //设置URL属性从而在同一窗口打开另一网页 document.fileCreatedDate //文件建立日期，只读属性 document.fileModifiedDate //文件修改日期，只读属性 document.fileSize //文件大小，只读属性 document.cookie //设置和读出cookie document.charset //设置字符集 简体中文:gb2312
Commonly used object methods:
document.write() //动态向页面写入内容 document.createElement(Tag) //创建一个html标签对象 document.getElementById(ID) //获得指定ID值的对象 document.getElementsByName(Name) //获得指定Name值的对象 document.body.appendChild(oTag)
body Main sub-object:
document.body //指定文档主体的开始和结束等价于<body></body> document.body.bgColor //设置或获取对象后面的背景颜色 document.body.link //未点击过的链接颜色 document.body.alink //激活链接(焦点在此链接上)的颜色 document.body.vlink //已点击过的链接颜色 document.body.text //文本色 document.body.innerText //设置<body>...</body>之间的文本 document.body.innerHTML //设置<body>...</body>之间的HTML代码 document.body.topMargin //页面上边距 document.body.leftMargin //页面左边距 document.body.rightMargin //页面右边距 document.body.bottomMargin //页面下边距 document.body.background //背景图片 document.body.appendChild(oTag) //动态生成一个HTML对象
Commonly used object events:
document.body.onclick="func()" //Clicking the object with the mouse pointer is triggered
document.body.onmouseover="func() " //Triggered when the mouse pointer moves to the object
document.body.onmouseout="func( ;
document.location.hash // #号后的部分 document.location.host // 域名+端口号 document.location.hostname // 域名 document.location.href // 完整URL document.location.pathname // 目录部分 document.location.port // 端口号 document.location.protocol // 网络协议(http:) document.location.search // ?号后的部分
Directly reference through the nane attribute
documeny.location.reload() //刷新网页 document.location.reload(URL) //打开新的网页 document.location.assign(URL) //打开新的网页 document.location.replace(URL) //打开新的网页
Reference the src attribute of the image
document.selection
Create an image
document.images //对应页面上的<img src="/static/imghwm/default1.png" data-src="1.jpg" class="lazy" alt="Summary of JavaScript document methods" >标签 document.images.length //对应页面上<img src="/static/imghwm/default1.png" data-src="1.jpg" class="lazy" alt="Summary of JavaScript document methods" >标签的个数 document.images[0] //第1个<img src="/static/imghwm/default1.png" data-src="1.jpg" class="lazy" alt="Summary of JavaScript document methods" >标签 document.images[i] //第i-1个<img src="/static/imghwm/default1.png" data-src="1.jpg" class="lazy" alt="Summary of JavaScript document methods" >标签
At the same time, create an 
tag on the page corresponding to it to display
Sample code (dynamically created Image):
<img src="/static/imghwm/default1.png" data-src="1.jpg" class="lazy" alt="Summary of JavaScript document methods" > document.images.oImage //document.images.name属性
forms collection (form in the page):
Referenced through the collection
document.images.oImage.src //document.images.name属性.src
Directly referenced through the tag name attribute
var oImage oImage = new Image() document.images.oImage.
Accessing the properties of the form:
<html>
<img src="/static/imghwm/default1.png" data-src="1.jpg" class="lazy" alt="Summary of JavaScript document methods" >
<script>
var oImage
oImage = new Image()
document.images.oImage.
</script>
</html>Sample code (form):
document.forms //对应页面上的<form>标签 document.forms.length //对应页面上<form>标签的个数 document.forms[0] //第1个<form>标签 document.forms[i] //第i-1个<form>标签 document.forms[i].length //第i-1个<form>中的控件数 document.forms[i].elements[j] //第i-1个<form>中第j-1个控件
Sample code (checkbox):
<form><input></form> document.Myform.myctrl //document.表单名.控件名
Sample code (Select):
document.forms[i].name //对应<form name>属性 document.forms[i].action //对应<form action>属性 document.forms[i].encoding //对应<form enctype>属性 document.forms[i].target //对应<form target>属性 document.forms[i].appendChild(oTag) //动态插入一个控件
Div collection (layer in the page):
<html> <!--Text控件相关Script--> <form> <input> <input> <form> <script> //获取文本密码框的值 document.write(document.Myform.oText.value) document.write(document.Myform.oPswd.value) </script> </html>
4 properties of the layer object:
<html>
<!--checkbox,radio控件相关script-->
<form>
<input value="1">1
<input value="2">2
</form>
<script>
function fun()
{
//遍历checkbox控件的值并判断是否选中
var length
length=document.forms[0].chk.length
for(i=0;i<length;i++){
v=document.forms[0].chk[i].value
b=document.forms[0].chk[i].checked
if(b)
alert(v=v+"被选中")
else
alert(v=v+"未选中")
}
}
</script>
<a href="http://www.php1.cn/">ddd</a>
</html>Sample code:
<html>
<!--Select控件相关Script-->
<form>
<select>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>
</form>
<script>
//遍历select控件的option项
var length
length=document.Myform.oSelect.length
for(i=0;i<length;i++)
document.write(document.Myform.oSelect[i].value)
</script>
<script>
//遍历option项并且判断某个option是否被选中
for(i=0;i<document.Myform.oSelect.length;i++)
{
if(document.Myform.oSelect[i].selected!=true)
document.write(document.Myform.oSelect[i].value)
else
document.write("<font color=red>"+document.Myform.oSelect[i].value+"</font>")
}
</script>
<script>
//根据SelectedIndex打印出选中的option
//(0到document.Myform.oSelect.length-1)
i=document.Myform.oSelect.selectedIndex
document.write(document.Myform.oSelect[i].value)
</script>
<script>
//动态增加select控件的option项
var oOption = document.createElement("OPTION");
oOption.text="4";
oOption.value="4";
document.Myform.oSelect.add(oOption);
</script>
<html>
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