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1 /// Copyright (c) 2012 Ecma International. All rights reserved. |
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2 /// Ecma International makes this code available under the terms and conditions set |
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3 /// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the |
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4 /// "Use Terms"). Any redistribution of this code must retain the above |
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5 /// copyright and this notice and otherwise comply with the Use Terms. |
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6 /** |
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7 * This test is actually testing the [[Delete]] internal method (8.12.8). Since the |
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8 * language provides no way to directly exercise [[Delete]], the tests are placed here. |
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9 * |
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10 * @path ch11/11.4/11.4.1/11.4.1-4.a-12.js |
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11 * @description delete operator returns false when deleting a property(length) |
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12 */ |
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13 |
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14 |
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15 function testcase() { |
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16 |
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17 var a = [1,2,3] |
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18 a.x = 10; |
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19 var d = delete a.length |
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20 if(d === false && a.length === 3) |
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21 return true; |
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22 } |
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23 runTestCase(testcase); |