()
| 796 | return ((this.intro = t + this.intro), this); |
| 797 | } |
| 798 | toString() { |
| 799 | const t = this.sources |
| 800 | .map((e, n) => { |
| 801 | const i = e.separator !== void 0 ? e.separator : this.separator; |
| 802 | return (n > 0 ? i : '') + e.content.toString(); |
| 803 | }) |
| 804 | .join(''); |
| 805 | return this.intro + t; |
| 806 | } |
| 807 | isEmpty() { |
| 808 | return !( |
| 809 | (this.intro.length && this.intro.trim()) || |