Home > Developer > JavaScript

Javascript setTimeout () transfer function parameters (including passing object parameters)

Source: Internet
Author: User
Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞

So I searched the internet and used another method, setTimeout ("Fun (" + parameter + ")", 1000, however, the preceding method is applicable when passing form textarea. For example, hml is like this: CopyCode The Code is as follows: <body>
<Div class = "Main">
<Div id = "showpane" class = "showpane"> </div>
<Div class = "textarea">
<Form method = "Post" Action = "" name = "sform">
<Textarea name = "txtara"> </textarea>
<Div>
<Input type = "Submit" name = "subt" value = "send" onclick = "doajax(sform.txt ara. Value); Return false;"/>
</Div>
</Form>
</Div>
</Div>
</Body>

In JS, I can write like this:
SetTimeout ("doajax(document.sform.txt ara. Value)", 1000 );
However, if you want to pass other parameters or object parameters, You need to rewrite this function according to the method provided on the Internet.
After research and practice, I have improved my methods. You can refer to it for reference. I only rely on my personal needs. I cannot guarantee other situations. Please give me more advice!Copy codeThe Code is as follows: <body>
<Div class = "Main">
<Div id = "showpane" class = "showpane">
</Div>
<Div class = "textarea">
<Form method = "Post" Action = "" name = "sform">
<Textarea name = "txtara"> </textarea>
<Div>
<Input type = "Submit" name = "subt" value = "send" onclick = "doajax(sform.txt ara. value, this); Return false;"/>
</Div>
</Form>
</Div>
</Div>
</Body>

Javascript: Copy code The Code is as follows: function initajax (){
VaR httprequest = NULL;
Try {
Httprequest = new activexobject ("msxml2.xmlhttp ");
}
Catch (e ){
Try {
Httprequest = new activexobject ("Microsoft. XMLHTTP ");
}
Catch (e ){
Try {
Httprequest = new XMLHttpRequest ();
}
Catch (e ){
Httprequest = NULL;
}
}
}
Return httprequest;
}
Function doajax (MSG, OBJ ){
VaR OBJ = OBJ; // This line is the main line.
Alert (obj. value );
VaR He = "He =" + MSG;
VaR ajaxrequest = initajax ();
Ajaxrequest. Open ("Post", "ABC. jsp", true );
Ajaxrequest. setRequestHeader ("Content-Type", "application/X-WWW-form-urlencoded; charset = UTF-8 ");
Ajaxrequest. Send (HE );
Ajaxrequest. onreadystatechange = function (){
If (ajaxrequest. readystate = 4 ){
If (ajaxrequest. Status = 200 ){
Document. getelementbyid ("showpane"). innerhtml = ajaxrequest. responsetext;
}
Else {
Doajax (MSG );
}
}
}
SetTimeout ("doajax(document.sform.txt ara. Value, document. All [" + obj. sourceindex + "])", 100); // there is also this line
}

In this way, I solved the problem of passing object parameters. Finally, I would like to say that I would like to comment on a better solution. I would like to learn from like-minded people!

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

  • Sales Support

    1 on 1 presale consultation

    Chat Contact Sales

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    Open a Ticket

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

    Learn More