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27 lines
630 B
JavaScript
27 lines
630 B
JavaScript
function f1(a, bIs, cIs, dIs, b=a, c=5, d=c) {
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assertEq(a, 1);
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assertEq(b, bIs);
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assertEq(c, cIs);
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assertEq(d, dIs);
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}
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f1(1, 1, 5, 5);
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f1(1, 42, 5, 5, 42);
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f1(1, 42, 43, 43, 42, 43);
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f1(1, 42, 43, 44, 42, 43, 44);
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function f2(a=[]) { return a; }
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assertEq(f2() !== f2(), true);
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function f3(a=function () {}) { return a; }
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assertEq(f3() !== f3(), true);
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function f4(a=Date) { return a; }
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assertEq(f4(), Date);
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Date = 0;
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assertEq(f4(), 0);
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function f5(x=FAIL()) {}; // don't throw
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var n = 0;
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function f6(a=n++) {}
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assertEq(n, 0);
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function f7([a, b], A=a, B=b) {
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assertEq(A, a);
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assertEq(B, b);
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}
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f7([0, 1]);
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