Bug 144036

Summary:	Web Inspector: convert more code to use ES6 method `Object.is()` instead of ===
Product:	WebKit	Reporter:	Brian Burg <burg>
Component:	Web Inspector	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED WONTFIX
Severity:	Normal	CC:	bburg, graouts, inspector-bugzilla-changes, jonowells, ljharb, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	528+ (Nightly build)
Hardware:	All
OS:	All

Description Brian Burg 2015-04-21 20:31:54 PDT

Implemented in https://bugs.webkit.org/show_bug.cgi?id=143865.

It is basically the same thing as ===, except Object.is(NaN, NaN) returns true.

Comment 1 Radar WebKit Bug Importer 2015-04-21 20:32:21 PDT

<rdar://problem/20646006>

Comment 2 Timothy Hatcher 2015-04-22 07:41:45 PDT

I think I still prefer === unless NaN is in the picture. I have a feeling Object.is() would be slower than ===.

Comment 3 Jordan Harband 2015-04-22 12:09:43 PDT

That's great incentive to make Object.is just as optimized :-) The JIT should be able to inline `Object.is(a, b)` with `a === b || (a !== a && b !== b)` at some point, I'd guess?