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24 lines
530 B
JavaScript
24 lines
530 B
JavaScript
test("inside parenthesis", () => {
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expect((1, 2, 3)).toBe(3);
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expect((1, 2 + 3, 4)).toBe(4);
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});
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test("with post-increment operator", () => {
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let foo = 0;
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foo = (foo++, foo);
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expect(foo).toBe(1);
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});
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test("with assignment operator", () => {
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var a, b, c;
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expect(((a = b = 3), (c = 4))).toBe(4);
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expect(a).toBe(3);
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expect(b).toBe(3);
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expect(c).toBe(4);
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var x, y, z;
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expect((x = ((y = 5), (z = 6)))).toBe(6);
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expect(x).toBe(6);
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expect(y).toBe(5);
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expect(z).toBe(6);
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});
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