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LibJS: Implement String.prototype.charAt with UTF-16 code units

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Timothy Flynn 2021-07-19 11:13:39 -04:00 • committed by Andreas Kling
parent 2bba20d123
commit 5d11614bc7
2 changed files with 24 additions and 4 deletions
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8
Userland/Libraries/LibJS/Tests/builtins/String/String.prototype.charAt.js
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@ -18,3 +18,11 @@ test("basic functionality", () => {
expect(s.charAt("foo")).toBe("f");
expect(s.charAt(undefined)).toBe("f");
});
test("UTF-16", () => {
var s = "😀";
expect(s).toHaveLength(2);
expect(s.charAt(0)).toBe("\ud83d");
expect(s.charAt(1)).toBe("\ude00");
expect(s.charAt(2)).toBe("");
});