1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
function validUtf8(data: number[]): boolean {    for (let i = 0; i < data.length; i++) {        const value = data[i];        if (value >> 7 === 0) {            continue;        }        if (            value >> 5 === 0b110 &&            i + 1 < data.length &&            data[i + 1] >> 6 === 0b10        ) {            i++;            continue;        }        if (            value >> 4 === 0b1110 &&            i + 2 < data.length &&            data[i + 1] >> 6 === 0b10 &&            data[i + 2] >> 6 === 0b10        ) {            i += 2;            continue;        }        if (            value >> 3 === 0b11110 &&            i + 3 < data.length &&            [data[i + 1], data[i + 2], data[i + 3]].every(                (v) => v >> 6 === 0b10,            )        ) {            i += 3;            continue;        }        return false;    }    return true;}export default validUtf8;