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comparison: js/src/jit-test/tests/collections/key-equality-1.js
js/src/jit-test/tests/collections/key-equality-1.js
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| -1:000000000000 | 0:bfb528261337 |
|---|---|
| 1 // Different representations of the same number or string are treated as the same Map key. | |
| 2 | |
| 3 var m = new Map; | |
| 4 var test = function test(a, b) { | |
| 5 m.set(a, 'secret'); | |
| 6 assertEq(m.get(b), 'secret'); | |
| 7 m.set(b, 'password'); | |
| 8 assertEq(m.get(a), 'password'); | |
| 9 | |
| 10 assertEq(a, b); | |
| 11 }; | |
| 12 | |
| 13 // Float and integer representations of the same number are the same key. | |
| 14 test(9, Math.sqrt(81)); | |
| 15 | |
| 16 // Ordinary strings and ropes are the same key. | |
| 17 var a = Array(1001).join('x'); | |
| 18 var b = Array(501).join('x') + Array(501).join('x'); | |
| 19 test(a, b); | |
| 20 | |
| 21 // Two structurally different ropes with the same characters are the same key. | |
| 22 a = ""; | |
| 23 b = ""; | |
| 24 for (var i = 0; i < 10; i++) { | |
| 25 a = Array(501).join('x') + a; | |
| 26 b = b + Array(501).join('x'); | |
| 27 } | |
| 28 test(a, b); |
