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Javascript error handling

Source: Internet
Author: User
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Try... catch statement 
<HTML>
Try... catch statement with confirmation box 
<HTML>
Throw statement 
<HTML> <body> <SCRIPT type = "text/JavaScript"> var x = prompt ("Enter the number between 0 and 10 :","") try {If (x> 10) throw "err1" else if (x <0) throw "err2" else if (isnan (x) throw "err3"} catch (ER) {If (ER = "err1") Alert ("error! The value is too large! ") If (ER =" err2 ") Alert (" error! The value is too small! ") If (ER =" err3 ") Alert (" error! This value is not a number! ") }</SCRIPT> </body>
Onerror event 
<HTML>

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