Method snip

src/MagicString.js:653–659

(start, end)

	// TODO deprecate this? not really very useful
	snip(start, end) {
		const clone = this.clone();
		clone.remove(0, start);
		clone.remove(end, clone.original.length);

		return clone;
	}

	_split(index) {
		if (this.byStart[index] || this.byEnd[index]) return;