Catching the 'Object Expected' Error : Error Exceptions : Development JAVASCRIPT DHTML TUTORIALS

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Catching the 'Object Expected' Error



<HTML>
<BODY>
<H1>
<SCRIPT> 
function dosomething() { 
} 

function goodFunc(){ 
   try { 
      doSomething(); 
   } 
   catch (e) { 
      if (e.description == "Object expected") { 
         alert("Cannot find a function named doSomething!"); 
      } 
      else { 
         alert ("Other error" + e.description); 
      } 
   } 
} 
</SCRIPT>
</H1>
<FORM>
<INPUT type=button value="Click" onClick="goodFunc();">
</FORM>
</BODY>
</HTML>