Bug 65885

Summary: Array.prototype.indexOf called on undefined should throw
Product: WebKit Reporter: Paul Irish <paulirish>
Component: JavaScriptCoreAssignee: Nobody <webkit-unassigned>
Status: RESOLVED DUPLICATE    
Severity: Normal CC: mhahnenberg
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   

Description Paul Irish 2011-08-08 15:56:28 PDT 
[].indexOf.call(undefined, 6);

^ should throw a TypeError according to spec....

from: http://es5.github.com/#x15.4.4.14

1. Let O be the result of calling ToObject passing the `this` value as the argument.

and from the ToObject definition http://es5.github.com/#x9.9 ...

if ArgumentType is Undefined, then Throw a TypeError exception
Comment 1 Paul Irish 2011-08-08 15:59:12 PDT 
Current behavior: JSC returns -1. V8 throws TypeError.
Comment 2 Mark Hahnenberg 2011-08-09 09:51:31 PDT 

*** This bug has been marked as a duplicate of bug 64679 ***