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1 function test1() { |
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2 function push(arr, x) { |
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3 return arr.push(x); |
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4 } |
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5 var arr = []; |
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6 for (var i=0; i<100; i++) { |
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7 assertEq(push(arr, i), i + 1); |
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8 } |
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9 } |
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10 test1(); |
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11 |
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12 function test2() { |
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13 var arr; |
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14 for (var i=0; i<60; i++) { |
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15 arr = []; |
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16 assertEq(arr.push(3.3), 1); |
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17 assertEq(arr.push(undefined), 2); |
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18 assertEq(arr.push(true), 3); |
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19 assertEq(arr.push(Math), 4); |
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20 assertEq(arr.toString(), "3.3,,true,[object Math]"); |
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21 } |
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22 } |
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23 test2(); |
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24 |
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25 function test3() { |
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26 function push(arr, v) { |
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27 arr.push(v); |
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28 } |
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29 for (var i=0; i<60; i++) { |
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30 var arr = []; |
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31 push(arr, null); |
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32 push(arr, 3.14); |
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33 push(arr, {}); |
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34 assertEq(arr.toString(), ",3.14,[object Object]"); |
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35 } |
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36 } |
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37 test3(); |