Method zones

src/server/web/public/terminal.js:993–995

()

            this._zones = [], this._zonePool = [], this._zonePoolIndex = 0, this._linePadding = { full: 0, left: 0, center: 0, right: 0 };
          }
          get zones() {
            return this._zonePool.length = Math.min(this._zonePool.length, this._zones.length), this._zones;
          }
          clear() {
            this._zones.length = 0, this._zonePoolIndex = 0;
          }