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getParameter value of a button

WeiJie Lim
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Joined: Sep 05, 2012
Posts: 85
The following code activates when a button named "search-btn" is clicked.

However, why does it still work even when I set the value of the button to null ?

Bear Bibeault
Author and ninkuma
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Joined: Jan 10, 2002
Posts: 61426
    
  67

"" is not null. It is the empty string.


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WeiJie Lim
Ranch Hand

Joined: Sep 05, 2012
Posts: 85
Bear Bibeault wrote:"" is not null. It is the empty string.


Oh I see, thanks.

So in fact the code will always activate for buttons right ? Since there isn't a case which the value attribute can be null.
Bear Bibeault
Author and ninkuma
Marshal

Joined: Jan 10, 2002
Posts: 61426
    
  67

Did you try omitting the value attribute completely?
 
 
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