This article brings you a summary of JavaScript programming skills. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.
1. oncontextmenu="window.event.returnValue=false" will completely block the right mouse button
| no Can be used for Table
2, Cancel selection, prevent copying3, onpaste="return false" No pasting is allowed 4. oncopy="return false;" oncut="return false;" Prevent copying 5. in front of the IE address bar Change to your own icon 6, You can display your icon in your favorites 7,< input style="ime-mode:disabled"> Turn off the input method 8. Always carry the frame <script language="JavaScript"> <!-- if (window == top)top.location.href = "frames.htm"; //frames.htm为框架网页 // --> </script> Copy after login 9. Prevent being framed <SCRIPT LANGUAGE=JAVASCRIPT> <!-- if (top.location != self.location)top.location=self.location; // --> </SCRIPT> Copy after login 10. The webpage will not be saved as <noscript> <*** src="/*.html>"; </***> </noscript> Copy after login 11, onclick="window.location = "view-source:"+ "http://www.pconline.com.cn""></p>
<p>12. Confirm when deleting</p>
<pre class="brush:php;toolbar:false"><a href=""javascript :if(confirm("确实要删除吗?"))location="boos.asp?&areyou=删除&page=1"">删除 </a>Copy after login
13, Get the absolute position of the control //Javascript
<script language="Javascript">
function getIE(e){
var t=e.offsetTop;
var l=e.offsetLeft;
while(e=e.offsetParent){
t+=e.offsetTop;
l+=e.offsetLeft;
}
alert("top="+t+"/nleft="+l);
}
</script>
//VBScript
<script language="VBScript"> <!--
function getIE()
dim t,l,a,b
set a=document.all.img1
t=document.all.img1.offsetTop
l=document.all.img1.offsetLeft
while a.tagName <>"BODY"
set a = a.offsetParent
t=t+a.offsetTop
l=l+a.offsetLeft
wend
msgbox "top="&t&chr(13)&"left="&l,64,"得到控件的位置"
end function
--> </script>Copy after login 14. The cursor is stopped at the end of the text in the text box <script language="javascript">
function cc()
{
var e = event.srcElement;
var r =e.createTextRange();
r.moveStart("character",e.value.length);
r.collapse(true);
r.select();
}
</script>
<input type=text name=text1 value="123" onfocus="cc()">Copy after login 15. Determine the source of the previous page javascript : document.referrer Copy after login 16. Minimize, Maximize and close the window <object id=hh1 classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11"> <param name="Command" value="Minimize"> </object> <object id=hh2 classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11"> <param name="Command" value="Maximize"> </object> <OBJECT id=hh3 classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11"> <PARAM NAME="Command" value="/Close"> </OBJECT> <input type=button value="/最小化 onclick=hh1.Click()> <input type=button value="/blog/最大化 onclick=hh2.Click()> <input type=button value=关闭 onclick=hh3.Click()> 本例适用于IE Copy after login 17. Shield the function keys Shift, Alt, Ctrl <script>
function look(){
if(event.shiftKey)
alert("禁止按Shift键!"); //可以换成ALTCTRL
}
document.onkeydown=look;
</script>Copy after login 18. The web page will not be cached <META HTTP-EQUIV="pragma" CONTENT="no-cache"> <META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate"> <META HTTP-EQUIV="expires" CONTENT="Wed, 26 Feb 1997 08:21:57 GMT"> 或者 <META HTTP-EQUIV="expires" CONTENT="0"> Copy after login 19. How to make the form bump-free Sense? <input type=text style="""border:1 solid #000000"> 或 <input type=text style="border-left:none; border-right:none; border-top:none; border-bottom: 1 solid #000000"> </textarea> Copy after login 20. The difference between & <div>(division)用来定义大段的页面元素，会产生转行 <span>用来定义同一行内的元素，跟 <div>的唯一区别是不产生转行 <layer>是ns的标记，ie不支持，相当于 <div> Copy after login 21. Let the pop-up window always be at the top: <body onblur="this.focus();"> Copy after login 22. No scroll bars? 让竖条没有: <body style="overflow:scroll;overflow-y:hidden"> </body> 让横条没有: <body style="overflow:scroll;overflow-x:hidden"> </body> 两个都去掉？更简单了 <body scroll="no"> </body> Copy after login 23. How to remove the dotted line around the picture after clicking on the picture link? <a href="#" onFocus="this.blur()"> <img src="/logo.jpg" border=0> </a> Copy after login 24. Email processing submission form <form name="form1" method="post" action=mailto:****@***.com enctype="text/plain"> <input type=submit> </form> Copy after login 25. How to write the code that refreshes the parent window in the opened child window? window.opener.location.reload() Copy after login 26. How to set the size of the open page <body onload="top.resizeTo(300,200);"> 打开页面的位置 <body onload="top.moveBy(300,200);"> Copy after login 27. How to add a background image that is not full of space on the page so that the background image does not move when the page is pulled <STYLE>
body
{background-image:url(/logo.gif); background-repeat:no-repeat;
background-position:center;background-attachment: fixed}
</STYLE>Copy after login 28. Check whether a string is composed entirely of numbers <script language="Javascript"> <!--
function checkNum(str){return str.match(//D/)==null}
alert(checkNum("1232142141"))
alert(checkNum("123214214a1"))
// --> </script>Copy after login 29. Get the size of a window document.body.clientWidth; document.body.clientHeight Copy after login 30. How to determine whether it is a character if (/[^/x00-/xff]/g.test(s)) alert("含有汉字");
else alert("全是字符");Copy after login 31.TEXTAREA The number of adaptive text lines <textarea rows=1 name=s1 cols=27 onpropertychange ="this.style.posHeight=this.scrollHeight"> </textarea> Copy after login 32. The date minus the number of days is equal to the second date <script language=Javascript>
function cc(dd,dadd)
{
//可以加上错误处理
var a = new Date(dd)
a = a.valueOf()
a = a - dadd * 24 * 60 * 60 * 1000
a = new Date(a)
alert(a.getFullYear() + "年" + (a.getMonth() + 1) + "月" + a.getDate() + "日")
}
cc("12/23/2002",2)
</script>Copy after login 33. Which Radio is selected <HTML> <script language="vbscript"> function checkme() for each ob in radio1 if ob.checked then window.alert ob.value next end function </script> <BODY> <INPUT name="radio1" type="radio" value="/style" checked>Style <INPUT name="radio1" type="radio" value="/blog/barcode">Barcode <INPUT type="button" value="check" </BODY> </HTML> Copy after login 34. The script is permanent No error <SCRIPT LANGUAGE="JavaScript">
<!-- Hide
function killErrors() {
return true;
}
window.onerror = killErrors;
// -->
</SCRIPT>Copy after login 35. The ENTER key can move the cursor to the next input box <input onkeydown="if(event.keyCode==13)event.keyCode=9"> Copy after login 36. Detect the link speed of a website: 把如下代码加入 <body>区域中:
<script language=Javascript>
tim=1
setInterval("tim++",100)
b=1
var autourl=new Array()
autourl[1]=1000){this.resized=true;this.style.width=1000;}" align=absMiddle border=0>www.njcatv.net"
autourl[2]="javacool.3322.net"
autourl[3]=1000){this.resized=true;this.style.width=1000;}" align=absMiddle border=0>www.sina.com.cn"
autourl[4]="www.nuaa.edu.cn"
autourl[5]=1000){this.resized=true;this.style.width=1000;}" align=absMiddle border=0>www.cctv.com"
function butt(){
***(" <form name=autof>")
for(var i=1;i <autourl.length;i++)
***(" <input type=text name=txt"+i+" size=10 value="/测试中……> =》 <input type=text
name=url"+i+" size=40> =》 <input type=button value="/blog/GO
onclick=window.open(this.form.url"+i+".value)> <br>")
***(" <input type=submit value=刷新> </form>")
}
butt()
function auto(url){
document.forms[0]["url"+b].value=url
if(tim>200)
{document.forms[0]["txt"+b].value="/链接超时"}
else
{document.forms[0]["txt"+b].value="/blog/时间"+tim/10+"秒"}
b++
}
function run(){for(var i=1;i <autourl.length;i++)***(" <img src=http://"+autourl+"/"+Math.random()+" width=1 height=1
onerror=auto("http://"+autourl+"")>")}
run() </script>Copy after login 37. Various Style cursor auto ：标准光标 default ：标准箭头 hand ：手形光标 wait ：等待光标 text ：I形光标 vertical-text ：水平I形光标 no-drop ：不可拖动光标 not-allowed ：无效光标 help ：?帮助光标 all-scroll ：三角方向标 move ：移动标 crosshair ：十字标 e-resize n-resize nw-resize w-resize s-resize se-resize sw-resize Copy after login 38. Special effects for page entry and exit 进入页面 <meta http-equiv="Page-Enter" content="revealTrans(duration=x, transition=y)"> 推出页面 <meta http-equiv="Page-Exit" content="revealTrans(duration=x, transition=y)"> 这个是页面被载入和调出时的一些特效。duration表示特效的持续时间，以秒为单位。transition表示使用哪种特效，取值为1-23: 0 矩形缩小 1 矩形扩大 2 圆形缩小 3 圆形扩大 4 下到上刷新 5 上到下刷新 6 左到右刷新 7 右到左刷新 8 竖百叶窗 9 横百叶窗 10 错位横百叶窗 11 错位竖百叶窗 12 点扩散 13 左右到中间刷新 14 中间到左右刷新 15 中间到上下 16 上下到中间 17 右下到左上 18 右上到左下 19 左上到右下 20 左下到右上 21 横条 22 竖条 以上22种随机选择一种 Copy after login 39. Jump within the specified time <META http-equiv=V="REFRESH" content="5;URL=http://www.51js.com"> Copy after login 40. Whether the web page is retrieved Add the following code to the area<a href="mailto:webmaster@sina.com">webmaster@sina.com </a> Copy after login 42. Table with flowing border effect Add the following code< ;body> area <SCRIPT>
l=Array(6,7,8,9,‘a‘,‘b‘,‘b‘,‘c‘,‘d‘,‘e‘,‘f‘)
Nx=5;Ny=35
t=" <table border=0 cellspacing=0 cellpadding=0 height="+((Nx+2)*16)+"> <tr>"
for(x=Nx;x <Nx+Ny;x++)
t+=" <td width=16 id=a_mo"+x+"> </td>"
t+=" </tr> <tr> <td width=10 id=a_mo"+(Nx-1)+"> </td> <td colspan="+(Ny-2)+" rowspan="+(Nx)+"> </td> <td width=16 id=a_mo"+(Nx+Ny)+"> </td> </tr>"
for(x=2;x <=Nx;x++)
t+=" <tr> <td width=16 id=a_mo"+(Nx-x)+"> </td> <td width=16 id=a_mo"+(Ny+Nx+x-1)+"> </td> </tr>"
t+=" <tr>"
for(x=Ny;x>0;x--)
t+=" <td width=16 id=a_mo"+(x+Nx*2+Ny-1)+"> </td>"
***(t+" </tr> </table>")
var N=Nx*2+Ny*2
function f1(y){
for(i=0;i <N;i++){
c=(i+y)%20;if(c>10)c=20-c
document.all["a_mo"+(i)].bgColor=""""#0000"+l[c]+l[c]+"‘"}
y++
setTimeout(‘f1(‘+y+‘)‘,‘1‘)}
f1(1)
</SCRIPT>Copy after login 43, JavaScript homepage pop-up window technique Pop-up in the middle of the window <script>
window.open("http://www.cctv.com","","width=400,height=240,top="+(screen.availHeight-240)/2+",left="+(screen.availWidth-400)/2);
</script>
============
<html>
<head>
<script language="LiveScript">
function WinOpen() {
msg=open("","DisplayWindow","toolbar=no,directories=no,menubar=no");
msg.***(" <HEAD> <TITLE>哈 罗! </TITLE> </HEAD>");
msg.***(" <CENTER> <H1>酷 毙 了! </H1> <h2>这 是 <B>JavaScript </B>所 开 的 视 窗! </h2> </CENTER>");
}
</script>
</head>
<body>
<form>
<input type="button" name="Button1" value="Push me"
</form>
</body>
</html>Copy after login ============== <SCRIPT language="JavaScript">
<！--
function openclk() {
another=open(‘1000){this.resized=true;this.style.width=1000;}" align=absMiddle border=0>http://www.ccidnet.com‘，‘NewWindow‘);
}
function closeclk() {
another.close();
}
//-->
</SCRIPT>
<FORM>
<INPUT TYPE="BUTTON" NAME="open" value="/打开一个窗口" onClick="openclk()">
<BR>
<INPUT TYPE="BUTTON" NAME="close" value="/blog/关闭这个窗口" onClick="closeclk()">
</FORM>Copy after login 2. The above code is too quiet, why not make it more dynamic? It would be great if you could give the page a landing effect! <script>
function drop(n) {
if(self.moveBy){
self.moveBy (0，-900);
for(i = n; i > 0; i--){
self.moveBy(0，3);
}
for(j = 8; j > 0; j--){
self.moveBy(0，j);
self.moveBy(j，0);
self.moveBy(0，-j);
self.moveBy(-j，0);
}
}
}
</script>
<body onLoad="drop(300)">Copy after login 3. I hate that many websites always open according to the default window. It would be great if you could control the opened window as you wish. <SCRIPT LANGUAGE="JavaScript">
<！-- Begin
function popupPage(l， t， w， h) {
var windowprops = "location=no，scrollbars=no，menubars=no，toolbars=no，resizable=yes" +
"，left=" + l + "，top=" + t + "，width=" + w + "，height=" + h;
var URL = "http://www.80cn.com";
popup = window.open(URL，"MenuPopup"，windowprops);
}
// End -->
</script>
<table>
<tr>
<td>
<form name=popupform>
<pre class="brush:php;toolbar:false">
打开页面的参数 <br>
离开左边的距离: <input type=text name=left size=2 maxlength=4> pixels
离开右边的距离: <input type=text name=top size=2 maxlength=4> pixels
窗口的宽度: <input type=text name=width size=2 maxlength=4> pixels
窗口的高度: <input type=text name=height size=2 maxlength=4> pixels
|
You only need to enter a value in the corresponding dialog box, and the window of the page to be opened is well controlled.
44. Open and move the page
Add the following code to the
area
<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
for (t = 2; t > 0; t--) {
for (x = 20; x > 0; x--) {
for (y = 10; y > 0; y--) {
parent.moveBy(0,-x);
}
}
for (x = 20; x > 0; x--) {
for (y = 10; y > 0; y--) {
parent.moveBy(0,x);
}
}
for (x = 20; x > 0; x--) {
for (y = 10; y > 0; y--) {
parent.moveBy(x,0);
}
}
for (x = 20; x > 0; x--) {
for (y = 10; y > 0; y--) {
parent.moveBy(-x,0);
}
}
}
//-->
// End -->
</script>45. Display the date and time of the personal client machine
<script language="LiveScript">
<!-- Hiding
today = new Date()
***("现 在 时 间 是： ",today.getHours(),":",today.getMinutes())
***(" <br>今 天 日 期 为： ", today.getMonth()+1,"/",today.getDate(),"/",today.getYear());
// end hiding contents -->
</script>46. Automatically generate the last modified date for you each time:
<html> <body> This is a simple HTML- page. <br> Last changes: <script language="LiveScript"> <!-- hide script from old browsers ***(document.lastModified) // end hiding contents --> </script> </body> </html>
47. Cannot be empty and email address constraints:
<html>
<head>
<script language="JavaScript">
<!-- Hide
function test1(form) {
if (form.text1.value == "")
alert("您 没 写 上 任 何 东 西， 请 再 输 入 一 次 !")
else {
alert("嗨 "+form.text1.value+"! 您 已 输 入 完 成 !");
}
}
function test2(form) {
if (form.text2.value == "" ||
form.text2.value.indexOf(‘@‘, 0) == -1)
alert("这 不 是 正 确 的 e-mail address! 请 再 输 入 一 次 !");
else alert("您 已 输 入 完 成 !");
}
// -->
</script>
</head>
<body>
<form name="first">
Enter your name: <br>
<input type="text" name="text1">
<input type="button" name="button1" value="输 入 测 试" onClick="test1(this.form)">
<P>
Enter your e-mail address: <br>
<input type="text" name="text2">
<input type="button" name="button2" value="输 入 测 试" onClick="test2(this.form)">
</body>48. Marquee
<html>
<head>
<script language="JavaScript">
<!-- Hide
var scrtxt="怎麽样 ! 很酷吧 ! 您也可以试试."+"Here goes your message the visitors to your
page will "+"look at for hours in pure fascination...";
var lentxt=scrtxt.length;
var width=100;
var pos=1-width;
function scroll() {
pos++;
var scroller="";
if (pos==lentxt) {
pos=1-width;
}
if (pos <0) {
for (var i=1; i <=Math.abs(pos); i++) {
scroller=scroller+" ";}
scroller=scroller+scrtxt.substring(0,width-i+1);
}
else {
scroller=scroller+scrtxt.substring(pos,width+pos);
}
window.status = scroller;
setTimeout("scroll()",150);
}
//-->
</script>
</head>
<body onLoad="scroll();return true;">
这里可显示您的网页 !
</body>
</html>49. Use buttons in the web page to control the display of the previous page, next page and home page.
<html> <body> <FORM NAME="buttonbar"> <INPUT TYPE="button" VALUE="Back" onClick="history.back()"> <INPUT TYPE="button" VALUE="JS- Home" onClick="location=‘script.html‘"> <INPUT TYPE="button" VALUE="Next" onCLick="history.forward()"> </FORM> </body> </html>
50. View the source code of a certain URL
Add the following code to the
area<SCRIPT>
function add()
{
var ress=document.forms[0].luxiaoqing.value
window.location="view-source:"+ress;
}
</SCRIPT>Enter the URL address to view the source code:
<FORM> <input type="text" name="luxiaoqing" size=40 value="http://"> </FORM> <FORM> <br> <INPUT type="button" value="查看源代码" onClick=add()> </FORM>
51. Title displays date
Add the following code to the
area:<script language="JavaScript1.2">
<!--hide
var isnMonth = new
Array("1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月");
var isnDay = new
Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六","星期日");
today = new Date () ;
Year=today.getYear();
Date=today.getDate();
if (document.all)
document.title="今天是: "+Year+"年"+isnMonth[today.getMonth()]+Date+"日"+isnDay[today.getDay()]
//--hide-->
</script>52. Display all links
Add the following code< In the body> area
<script language="JavaScript1.2">
<!--
function extractlinks(){
var links=document.all.tags("A")
var total=links.length
var win2=window.open("","","menubar,scrollbars,toolbar")
win2.***(" <font size=‘2‘>一共有"+total+"个连接 </font> <br>")
for (i=0;i <total;i++){
win2.***(" <font size=‘2‘>"+links.outerHTML+" </font> <br>")
}
}
//-->
</script>
<input type="button" onClick="extractlinks()" value="显示所有的连接">53, enter key to change line
把如下代码加入
区域中<script type="text/javascript">
function handleEnter (field, event) {
var keyCode = event.keyCode ? event.keyCode : event.which ?
event.which : event.charCode;
if (keyCode == 13) {
var i;
for (i = 0; i < field.form.elements.length; i++)
if (field == field.form.elements)
break;
i = (i + 1) % field.form.elements.length;
field.form.elements.focus();
return false;
}
else
return true;
}
</script>
<form>
<input type="text" onkeypress="return handleEnter(this, event)"> <br>
<input type="text" onkeypress="return handleEnter(this, event)"> <br>
<textarea>回车换行54、确认后提交
把如下代码加入
区域中<SCRIPT LANGUAGE="JavaScript">
<!--
function msg(){
if (confirm("你确认要提交嘛！"))
document.lnman.submit()
}
//-->
</SCRIPT>
<form name="lnman" method="post" action="">
<p>
<input type="text" name="textfield" value="确认后提交">
</p>
<p>
<input type="button" name="Submit" value="提交"
</p>
</form>55、改变表格的内容
把如下代码加入
区域中<script ***script> var arr=new Array() arr[0]="一一一一一"; arr[1]="二二二二二"; arr[2]="三三三三三"; </script> <select onchange="zz.cells[this.selectedIndex].innerHTML=arr[this.selectedIndex]"> <option value=a>改变第一格 </option> <option value=a>改变第二格 </option> <option value=a>改变第三格 </option> </select> <table id=zz border=1> <tr height=20> <td width=150>第一格 </td> <td width=150>第二格 </td> <td width=150>第三格 </td> </tr> </table>
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