Using Jquery append() to build html and pass null javascript values

Here is my code:

$('#pageForward').append(' detailUser +','+ detailDate +','+ detailUserName + ','+ previousPage +');"开发者_开发技巧> >>');

The string builds, but if my variables are null, I get a syntax error:

[Break On This Error] getSDDetailPopUp(Accounting,,,,2);

How do I get this string to be this: getSDDetailPopUp(Accounting,'','','',2);

Thanks!

use || as a null coalescing operator.

... detailUser || "" + ...

For each of your params you can just do...

(detailUser != null ? detailUser : "''")