giai ho tui

In UncategorizedOctober 22, 2020

*/
	function occurrences(string, subString, allowOverlapping) {

	string += “”;
	subString += “”;
	if (subString.length <= 0) return (string.length + 1);

	var n = 0,
	pos = 0,
	step = allowOverlapping ? 1 : subString.length;

	while (true) {
	pos = string.indexOf(subString, pos);
	if (pos >= 0) {
	++n;
	pos += step;
	} else break;
	}
	return n;
	}