[Webkit-unassigned] [Bug 39834] New: [Qt] JavaScript logical expressions

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=39834

           Summary: [Qt] JavaScript logical expressions
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: S60 Hardware
        OS/Version: S60 3rd edition
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jay.tucker at nokia.com


There seems to be a bug affecting JavaScript logical expressions which appears only on Symbian hardware. It occurs when a non-empty String variable is compared to a Boolean variable (which admittedly is not a good thing to do, but people do it nonetheless).

var str = "hello";
if (str == false) // Does this expression evaluate to true or false?
{
// do stuff here
}

On all the desktop browsers I tried as well as on Anomaly running on the Symbian emulator, the expression evaluated to false, so the stuff inside the if-block was not executed. However, on a Symbian device, the expression evaluated to true, so the stuff inside the if-block was executed.

I've attached a tiny HTML file that contains some test cases for these types of logical expressions.

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