Passing a java variable to a javascript function

Question

I have the following piece of code which is a input content for a js lib:

content:'<a href="x.com" onclick="confirmDel("<%=user.name%>")" > <img src="delete.png" alt="Delete" width="15px" height="15px"></a></div>'

confirmDel(name)
{
 if(confirm("delete " + name +" ?"))
   {
     // Do delete stuff
   } else
   {
   return false;
   }
}

when I click the delete link, it does not prompt me with the delete confirmation alert! what am I missing here? Is it about the way I pass the variable to the function?

sasi · Accepted Answer · 2013-03-06 03:52:59Z

1

 content:'<a href="x.com" onclick="confirmDel(\''+<%=user.name%>+'\')" > <img src="delete.png" alt="Delete" width="15px" height="15px"></a></div>'

problem with passing parameter in the onclick..use escape character..

answered Mar 6, 2013 at 3:52

sasi

4,3784 gold badges30 silver badges48 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Ben McCormick Over a year ago

No this should work fine, its not broken, and actually will break if you do it this way. It will try to treat the name as a variable rather than a string.

Luiggi Mendoza Over a year ago

It would be better without scriptlets usage since is deprecated. Check How to avoid Java Code in JSP-Files?

Ben McCormick · Accepted Answer · 2013-03-06 04:57:32Z

0

confirmDel(name)
{
 if(confirm("delete " + name +" ?"))
   {
     // Do delete stuff
   } else
   {
   return false;
   }
}

This is incorrect. Its halfway between declaring a function and calling it, but doesn't really do either.

You need to declare the function and then call it to execute that code. You're calling it in the onclick section now, but you need to define it correctly

function confirmDel(nameStr)
{
 if(confirm("delete " + nameStr +" ?"))
   {
     // Do delete stuff
   } else
   {
   return false;
   }
}

edited Mar 6, 2013 at 4:57

answered Mar 6, 2013 at 3:59

Ben McCormick

25.8k12 gold badges56 silver badges71 bronze badges

1 Comment

Ben McCormick Over a year ago

your function declaration still won't work as is though. You need to add the function keyword in there somewhere.

Collectives™ on Stack Overflow

Passing a java variable to a javascript function

2 Answers 2

2 Comments

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

2 Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related