Function isLowSurrogate

src/utils/characters.ts:15–21

(string: string, index = 0)

}

export function isLowSurrogate(string: string, index = 0): boolean {
	if (index < 0 || index >= string.length) {
		return false;
	}
	const charCode = string.charCodeAt(index);
	return charCode >= MIN_LOW_SURROGATE && charCode <= MAX_LOW_SURROGATE;
}

export function isSurrogatePair(string: string, start = 0): boolean {
	return isHighSurrogate(string, start) && isLowSurrogate(string, start + 1);