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LibJS: Add String.prototype.indexOf position argument
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2 changed files with 23 additions and 1 deletions
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@ -5,4 +5,19 @@ test("basic functionality", () => {
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expect(s.indexOf("friends")).toBe(6);
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expect(s.indexOf("enemies")).toBe(-1);
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expect(s.indexOf("friends", 0)).toBe(6);
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expect(s.indexOf("enemies", 0)).toBe(-1);
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expect(s.indexOf("friends", 4)).toBe(6);
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expect(s.indexOf("friends", 6)).toBe(6);
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expect(s.indexOf("friends", 7)).toBe(-1);
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expect(s.indexOf("friends", 8)).toBe(-1);
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expect(s.indexOf("enemies", 2)).toBe(-1);
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expect(s.indexOf("enemies", 7)).toBe(-1);
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expect(s.indexOf("e")).toBe(1);
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expect(s.indexOf("e", 0)).toBe(1);
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expect(s.indexOf("e", 2)).toBe(9);
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});
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