Common js Supplements 1 and js supplements

Common js Supplements 1 and js supplements

Google js debugging

Press f12 to enter js debugging mode

Hitting the corresponding js file and hitting the breakpoint in the js Program

Press F10 for debugging.

Press F8 to finish

Used to display operation information

<Script>

Window. onload = function ret (){

Var msg = '$ {requestScope. msg }';

If (msg! = "" & Msg! = Null ){

Alert (msg );

}

}

</Script>

 

Change the value of the text box

<Input name = "btProductModel. productType" checked = "checked" type = "radio" onclick = "changeShow (this. value)" value = "01"> pre-Casting Production

 

<Input name = "btProductModel. productType" type = "radio" checked = "checked" onclick = "changeShow (this. value)" value = "03"> rework Production

 

 

 

Function changeShow (value ){

If (value = "01 "){

Document. getElementById ("productcode"). innerHTML = "Product NO ";

Document. getElementById ("productname"). innerHTML = "precasting product ";

} Else {

Document. getElementById ("productcode"). innerHTML = "repair number ";

Document. getElementById ("productname"). innerHTML = "original contract No ";

}

}

 

Close Window

Function closeWindows (){

Window. open ('', '_ parent ','');

Window. opener = window;

Window. close ();

}

Js automatically adds a table instead of adding a row of the table.

Var tbl = document. createElement ("table ");
Tbl. id = table2; // name it as needed
Tbl. style = "tableCSS ";//
Tbl. innerHTML = "<tbody> <tr> <td>... </tbody>"; // here is your table content
Document. appendChild (tbl );

Js I want to add a colon In The Middle Of 1100, such as. How can I implement it using code?

If many of them need to be processed in this way, add the for loop <script type = "text/javascript"> <-- var str = "1100 ";
Str11 = str. substring (0, 2 );
StrSep = ":";
Str00 = str. substring (2, str. length );
StrNew = str11 + strSep + str00;
Alert (strNew );
-->
</Script>