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LibJS: Implement String.prototype.indexOf with UTF-16 code units
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2 changed files with 23 additions and 8 deletions
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@ -21,3 +21,11 @@ test("basic functionality", () => {
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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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test("UTF-16", () => {
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var s = "😀";
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expect(s.indexOf("😀")).toBe(0);
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expect(s.indexOf("\ud83d")).toBe(0);
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expect(s.indexOf("\ude00")).toBe(1);
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expect(s.indexOf("a")).toBe(-1);
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});
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