Method prependLeft

benchmark/data-min.js:456–461

(t, e)

		return ((this.intro = t + this.intro), this);
	}
	prependLeft(t, e) {
		if (typeof e != 'string') throw new TypeError('inserted content must be a string');
		this._split(t);
		const n = this.byEnd[t];
		return (n ? n.prependLeft(e) : (this.intro = e + this.intro), this);
	}
	prependRight(t, e) {
		if (typeof e != 'string') throw new TypeError('inserted content must be a string');
		this._split(t);