32342 2009-12-09 12:49:06 -0800 Javascript string comparison 2009-12-09 23:01:07 -0800 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Mac (Intel) OS X 10.6 RESOLVED DUPLICATE 32256 HasReduction, InRadar P2 Normal --- 0 matt webkit-unassigned mjs oldest_to_newest 170121 0 matt 2009-12-09 12:49:06 -0800 This broken with the nightly build from Monday, Dec 7. Javascript appears to be evaluating the following code properly in console until you get to the last line. The expression is always being evaluated as "true". mystring = "02122010"; digits = mystring.substr(2,2); console.log("Digits value:"); console.log(digits); console.log("Digits type:"); console.log(typeof digits); console.log("This expression evaluates correctly as false: (digits > 12)"); console.log(digits < 1); console.log("This expression evaluates correctly as false: (digits > 12)"); console.log(digits > 12); console.log("This expression evaluates correctly as false: (digits < 1) || (digits > 12)"); console.log((digits < 1) || (digits > 12)); console.log("But it fails in real use: if ((digits < 1) || (digits > 12)) { console.log(\"Sorry, I don't like strings - even though I should.\"); }") if ((digits < 1) || (digits > 12)) { console.log("Sorry, I don't like strings - even though I should."); } 170150 1 mrowe 2009-12-09 13:41:25 -0800 <rdar://problem/7457885> 170323 2 mjs 2009-12-09 23:01:07 -0800 This is caused by the same underlying bug as bug 32256. Marking duplicate of the higher-numbered bug because the other bug better reflects the impact. *** This bug has been marked as a duplicate of bug 32256 ***