js/src/jit-test/tests/for-of/array-holes-1.js

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0 1 // for-of does not skip Array holes. The value at a hole is undefined.
michael@0 2
michael@0 3 var a = [0, , 2, 3];
michael@0 4 var log = [];
michael@0 5 for (var x of a) {
michael@0 6 assertEq(x, a[log.length]);
michael@0 7 log.push(x);
michael@0 8 }
michael@0 9 assertEq(log[1], undefined);
michael@0 10 assertEq(log.join(), "0,,2,3");

mercurial