Home > Developer > JavaScript
21 specified number of cycles
1: <s timeout>
2: <! --
3: var myarray = new array (3 );
4: myarray [0] = "item 0 ";
5: myarray [1] = "item 1 ";
6: myarray [2] = "item 2 ";
7: for (I = 0; I <myarray. length; I ++ ){
8: Document. Write (myarray [I] + "<br/> ");
9 :}
10: // -->
11: </S release>
22. set future execution
1: <s timeout>
2: <! --
3: function Hello (){
4: window. Alert ("hello ");
5 :}
6: window. setTimeout ("Hello ()", 5000 );
7: // -->
8: </s timeout>
23. Scheduled function execution
1: <s timeout>
2: <! --
3: function Hello (){
4: window. Alert ("hello ");
5: window. setTimeout ("Hello ()", 5000 );
6 :}
7: window. setTimeout ("Hello ()", 5000 );
8: // -->
9: </s success>
24 cancel scheduled execution
1: <s timeout>
2: <! --
3: function Hello (){
4: window. Alert ("hello ");
5 :}
6: var mytimeout = Window. setTimeout ("Hello ()", 5000 );
7: window. cleartimeout (mytimeout );
8: // -->
9: </s success>
25. Execute the function when uninstalling the page.
1: <body onUnload = "functionname ();">
2: Body of the page
3: </body>
This is true for javas outputs. 2. browser output.
26 access Document Object
1: <s required language = "javas alias">
2: var myurl = Document. url;
3: window. Alert (myurl );
4: </s timeout>
27 Dynamic HTML output
1: <s required language = "javas alias">
2: Document. Write ("<p> here's some information about this document: </P> ");
3: Document. Write ("<ul> ");
4: Document. Write ("<li> referring document:" + document. referrer + "</LI> ");
5: Document. Write ("<li> domain:" + document. Domain + "</LI> ");
6: Document. Write ("<li> URL:" + document. url + "</LI> ");
7: Document. Write ("</ul> ");
8: </s timeout>
28 output line feed
1: Document. writeln ("<strong> A </strong> ");
2: Document. writeln ("B ");
29. Output date
1: <s required language = "javas alias">
2: var thisdate = new date ();
3: Document. Write (thisdate. tostring ());
4: </s timeout>
30 Time Zone of the specified date
1: <s required language = "javas alias">
2: var myoffset =-2;
3: var currentdate = new date ();
4: var useroffset = currentdate. gettimezoneoffset ()/60;
5: var timezonedifference = useroffset-myoffset;
6: currentdate. sethours (currentdate. gethours () + timezonedifference );
7: Document. Write ("the time and date in Central Europe is:" + currentdate. tolocalestring ());
8: </s timeout>
31. Set the date output format
1: <s required language = "javas alias">
2: var thisdate = new date ();
3: var thistimestring = thisdate. gethours () + ":" + thisdate. getminutes ();
4: var thisdatestring = thisdate. getfullyear () + "/" + thisdate. getmonth () + "/" + thisdate. getdate ();
5: Document. Write (thistimestring + "on" + thisdatestring );
6: </s timeout>
32. Read URL parameters
1: <s required language = "javas alias">
2: var urlparts = Document. url. Split ("?");
3: var parameterparts = urlparts [1]. Split ("&");
4: for (I = 0; I <parameterparts. length; I ++ ){
5: var pairparts = parameterparts [I]. Split ("= ");
6: var pairname = pairparts [0];
7: var pairvalue = pairparts [1];
8: Document. Write (pairname + ":" + pairvalue );
9 :}
10: </s success>
Do you still think HTML is stateless?
33 open a new document object
1: <s required language = "javas alias">
2: function newdocument (){
3: Document. open ();
4: Document. Write ("<p> This is a new document. </P> ");
5: Document. Close ();
6 :}
7: </s timeout>
34 page Jump
1: <s required language = "javas alias">
2: window. Location = http://www.liu21st.com /";
3: </s timeout>
35 add webpage loading progress window
1: <HTML>
2: 3: <S release language = 'javas upload'>
4: var placeholder = folder holder open('holder.html ', 'placeholder', 'width = 200, Height = 200 ');
5: </s success>
6: <title> the main page </title>
7: 8: <body onload = 'placeholder. Close () '>
9: <p> This is the main page </P>
10: </body>
11:
Javas pull is like this 3: Images
36 read image attributes
1:
2: <a href = "#" onclick = "window. Alert (document. myimage. width)"> width </a>
3:
37 dynamic image loading
1: <s required language = "javas alias">
2: myimage = new image;
3: myimage. src = maid ";
4: </s timeout>
38 simple image replacement
1: <s required language = "javas alias">
2: rollimage = new image;
3: rollimage. src = Your rollimage1.jpg ";
4: defaultimage = new image;
5: defaultimage. src = Invalid image1.jpg ";
6: </s timeout>
7: <a href = "/" myurl "" onmouseover = "document. myimage. src = rollimage. SRC ;"
8: onmouseout = "document. myimage. src = defaultimage. SRC;">
9:
39 random Image Display
1: <s required language = "javas alias">
2: var imagelist = new array;
3: imagelist [0] = images image1.jpg ";
4: imagelist [1] = images image2.jpg ";
5: imagelist [2] = images image3.jpg ";
6: imagelist [3] = image4.jpg ";
7: var imagechoice = math. Floor (math. Random () * imagelist. Length );
8: Document. Write (' ');
9: </s success>
40 function-implemented image replacement
1:
2: var source = 0;
3: var replacement = 1;
4: function createrollover (originalimage, replacementimage) {
5: var imagearray = new array;
6: imagearray [Source] = new image;
7: imagearray [Source]. src = originalimage;
8: imagearray [replacement] = new image;
9: imagearray [replacement]. src = replacementimage;
10: Return imagearray;
11 :}< br> 12: var rollimage1 = createrollover({image1.jpg}{rollimage1.jpg ");
13:
14: 15: onmouseout =" document. myimage1.src = rollimage1 [Source]. SRC; ">
16:
17:
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
