js/src/jit-test/tests/for-of/arrays-shrinking-1.js@6474c204b198 (annotated)
js/src/jit-test/tests/for-of/arrays-shrinking-1.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | // A for-of loop over an array stops at the new end of the array if it shrinks during iteration. |
| michael@0 | 2 | |
| michael@0 | 3 | function ispal(arr) { |
| michael@0 | 4 | for (var v of arr) { |
| michael@0 | 5 | if (v !== arr.pop()) |
| michael@0 | 6 | return false; |
| michael@0 | 7 | } |
| michael@0 | 8 | return true; |
| michael@0 | 9 | } |
| michael@0 | 10 | |
| michael@0 | 11 | assertEq(ispal([1, 2, 3, 4, 3, 2, 1]), true); |
| michael@0 | 12 | assertEq(ispal([1, 2, 3, 3, 2, 1]), true); |
| michael@0 | 13 | assertEq(ispal([1, 2, 3, 4, 2, 1]), false); |
