Summary of tips for using Javascript

Event source object
event.srcElement.tagName
event.srcElement.type
Capture release
event.srcElement.setCapture();
event.srcElement.releaseCapture();
Event key
event.keyCode
event.shiftKey
event.altKey
event.ctrlKey
Event return value
event.returnValue
Mouse position
event. x
event.y
Form active element
document.activeElement
Binding event
document.captureEvents(Event.KEYDOWN);
Access form element
document. all("txt").focus();
document.all("txt").select();
Form command
document.execCommand
Form COOKIE
document. cookie
Menu event
document.oncontextmenu
Create element
document.createElement("SPAN");
Get elements based on the mouse:
document.elementFromPoint(event.x,event. y).tagName=="TD
document.elementFromPoint(event.x,event.y).appendChild(ms)
Form pictures
document.images[index]
Form event binding Define
document.onmousedown=scrollwindow;
Element
document.Form.elements[index]
Object binding event
document.all.xxx.detachEvent('onclick',a) ;
Number of plug-ins
navigator.plugins
Get variable type
typeof($js_libpath) == "undefined"
Drop-down box
Drop-down box.options[index]
Drop-down box Box.options.length
Find object
document.getElementsByName("r1");
document.getElementById(id);
Timing
timer=setInterval('scrollwindow()',delay );
clearInterval(timer);
UNCODE encoding
escape(),unescape
Parent object
obj.parentElement(dhtml)
obj.parentNode(dom)
Exchange Rows of the table
TableID.moveRow(2,1)
Replace CSS
document.all.csss.href = "a.css";
Display side by side
display:inline
Hide focus
hidefocus=true
Wrap according to width
style="word-break:break-all"
Auto refresh

Simple email

Quick transfer To position
obj.scrollIntoView(true)
Anchor

anchors
Web page passing parameters
location.search();
Editable
obj.contenteditable=true
Execute menu command
obj.execCommand
Double-byte characters
/[^ \x00-\xff]/
Chinese characters
/[\u4e00-\u9fa5]/
Let the English string automatically wrap when it exceeds the width of the table
word-wrap: break-word; word-break: break-all;
Transparent background

Get style content
obj.style.cssText
HTML tag
document.documentElement.innerHTML
The first style tag
document.styleSheets[0]
The first style in the style tag
document.styleSheets[0]. rules[0]
Prevent the page from being reset to the top of the page when clicking on an empty link.
word
Previous web page source
asp:
request.servervariables("HTTP_REFERER")
javascript:
document.referrer
Release memory
CollectGarbage();
Disable right-click
document.oncontextmenu = function() { return false;}
Disable saving

Disable selection
Address bar icon

favicon.ico The name is preferably the same 16*16 colors and placed in the root directory of the virtual directory
Favorite Bar Icon

View source code

Turn off the input method

Automatically select all
< ;input type=text name=text1 value="123" onfocus="this.select()">
ENTER key can move the cursor to the next input box

Default value of text box

titleNewline
obj.title = "123 sdfs "
Get the microsecond represented by the time
var n1 = new Date("2004-10-10".replace(/-/g, "\/")).getTime()
Window Whether to close
win.closed
checkbox flat


Get selected Content
document.selection.createRange().duplicate().text
Autocomplete function
Turn on this function
Turn off this function
Maximize window

No close button IE
window.open("aa.htm", "meizz", "fullscreen=7");
Uniform encoding/decoding
alert(decodeURIComponent(encodeURIComponent ("http://你好.com?as= hehe")))
encodeURIComponent also encodes ":", "/", ";" and "?"
Table row instructions
< ;tr onmouseover="this.bgColor='#f0f0f0'" onmouseout="this.bgColor='#ffffff'">

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