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| 1 2 3 4 5 6 7 8 9 10 11 12 | 1x 25x 25x 25x 23x 49x 49x 26x 26x | export const strCnt = (needle: string, haystack: string, offset: number = 0): number => {
let cnt = 0;
const needleLen = needle.length;
if (needleLen === 0) return 0;
while (true) {
const index = haystack.indexOf(needle, offset);
if (index < 0) return cnt;
cnt++;
offset = index + needleLen;
}
};
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