31777 2009-11-21 16:50:01 -0800 Number.toFixed returns wrong values 2010-08-27 12:56:54 -0700 1 1 1 Unclassified WebKit WebCore JavaScript 528+ (Nightly build) PC Windows 7 RESOLVED DUPLICATE 24711 http://pc44.one.pl/goorol/bugs/chrome/Number.toFixed.html P2 Major --- 0 bugzilla33 webkit-unassigned barraclough oldest_to_newest 165674 0 43667 bugzilla33 2009-11-21 16:50:01 -0800 Created attachment 43667 source Number.toFixed returns sometimes wrong values (incorect rounding). Please run attachment. Actual Results: ( 0.95 ) . toFixed ( 1 ) = 0.9 THOUGH ( 9.5 ) . toFixed ( 0 ) = 10 Expected Results: ( 0.95 ) . toFixed ( 1 ) = 1.0 LIKE ( 9.5 ) . toFixed ( 0 ) = 10 165688 1 ap 2009-11-21 22:55:08 -0800 Duplicate of bug 24711? 165697 2 bugzilla33 2009-11-22 01:06:09 -0800 toFixed rounds, not floors ! bug 24711 is not a Bug !! (1.95) . toFixed( 1 ) = 2.0 because: Math.round ( 1.95 * 10 ) / 10 equal 2 165699 3 bugzilla33 2009-11-22 01:14:34 -0800 All browsers before returns string value (IE, Opera, Konqueror, Chrome, Firefox) rounding a Number. 270678 4 barraclough 2010-08-27 12:56:54 -0700 yep, this is a dupe. ieee754(.95) < decimal(.95), hence rounds up to 0.9 (ecma-262 15.7.4.5 requires we select the nearest value). ieee754(9.5) == decimal(9.5), hence rounds up to 10 (ecma-262 15.7.4.5 requires we select the larger to two equally near values). *** This bug has been marked as a duplicate of bug 24711 *** 43667 2009-11-21 16:50:01 -0800 2009-11-21 16:50:01 -0800 source Number.toFixed.html text/html 1513 bugzilla33 PCFET0NUWVBFIGh0bWw+DQo8c2NyaXB0Pg0KICAgIGFyZ3M9Ww0KICAgICAgICAgIDAuOTAsDQog ICAgICAgICAgMC45MSwNCiAgICAgICAgICAwLjkyLA0KICAgICAgICAgIDAuOTMsDQogICAgICAg ICAgMC45NCwNCiAgICAgICAgICAwLjk1LA0KICAgICAgICAgIDAuOTYsDQogICAgICAgICAgMC45 NywNCiAgICAgICAgICAwLjk4LA0KICAgICAgICAgIDAuOTksDQogICAgICAgICAgOS4wLA0KICAg ICAgICAgIDkuMSwNCiAgICAgICAgICA5LjIsDQogICAgICAgICAgOS4zLA0KICAgICAgICAgIDku NCwNCiAgICAgICAgICA5LjUsDQogICAgICAgICAgOS42LA0KICAgICAgICAgIDkuNywNCiAgICAg ICAgICA5LjgsDQogICAgICAgICAgOS45DQogICAgICAgICBdDQoNCiAgIHNjYWxlPVsNCiAgICAg ICAgICAxLA0KICAgICAgICAgIDEsDQogICAgICAgICAgMSwNCiAgICAgICAgICAxLA0KICAgICAg ICAgIDEsDQogICAgICAgICAgMSwNCiAgICAgICAgICAxLA0KICAgICAgICAgIDEsDQogICAgICAg ICAgMSwNCiAgICAgICAgICAxLA0KICAgICAgICAgIDAsDQogICAgICAgICAgMCwNCiAgICAgICAg ICAwLA0KICAgICAgICAgIDAsDQogICAgICAgICAgMCwNCiAgICAgICAgICAwLA0KICAgICAgICAg IDAsDQogICAgICAgICAgMCwNCiAgICAgICAgICAwLA0KICAgICAgICAgIDANCiAgICAgICAgIF0N Cg0KDQoNCg0KIHJlc3VsdHM9Ww0KICAgICAgICAgICcwLjknLA0KICAgICAgICAgICcwLjknLA0K ICAgICAgICAgICcwLjknLA0KICAgICAgICAgICcwLjknLA0KICAgICAgICAgICcwLjknLA0KICAg ICAgICAgICcxLjAnLA0KICAgICAgICAgICcxLjAnLA0KICAgICAgICAgICcxLjAnLA0KICAgICAg ICAgICcxLjAnLA0KICAgICAgICAgICcxLjAnLA0KICAgICAgICAgICc5JywNCiAgICAgICAgICAn OScsDQogICAgICAgICAgJzknLA0KICAgICAgICAgICc5JywNCiAgICAgICAgICAnOScsDQogICAg ICAgICAgJzEwJywNCiAgICAgICAgICAnMTAnLA0KICAgICAgICAgICcxMCcsDQogICAgICAgICAg JzEwJywNCiAgICAgICAgICAnMTAnDQogICAgICAgICBdDQogDQogZm9yKHo9MDt6PGFyZ3MubGVu Z3RoO3orKyl7DQogIGRvY3VtZW50LndyaXRlKCcoICcrYXJnc1t6XSsnICkgLiB0b0ZpeGVkICgg JytzY2FsZVt6XSsnICkgPSAnKQ0KICBkb2N1bWVudC53cml0ZShhcmdzW3pdLnRvRml4ZWQoc2Nh bGVbel0pKQ0KICBpZihhcmdzW3pdLnRvRml4ZWQoc2NhbGVbel0pICE9IHJlc3VsdHNbel0pZG9j dW1lbnQud3JpdGUoJyA8c3BhbiBzdHlsZT0iY29sb3I6cmVkIj4gQlVHOiAnK3Jlc3VsdHNbel0r Jzwvc3Bhbj4nKQ0KICBkb2N1bWVudC53cml0ZSgnPGJyLz4nKQ0KIH0NCjwvc2NyaXB0Pg0KPGRp diBzdHlsZT0iY29sb3I6cmVkO3BhZGRpbmctdG9wOjFlbSI+S29ucXVlcm9yIDQuMy4zOiBGQUlM UzwvZGl2Pg0KPGRpdiBzdHlsZT0iY29sb3I6Z3JlZW4iPk9wZXJhOiBvazwvZGl2Pg0KPGRpdiBz dHlsZT0iY29sb3I6Z3JlZW4iPklFOiBvazwvZGl2Pg==