Method scrollUp

src/server/web/public/terminal.js:3003–3007

(e3)

            return t3 && (t3.deleteCells(this._activeBuffer.x, e3.params[0] || 1, this._activeBuffer.getNullCell(this._eraseAttrData())), this._dirtyRowTracker.markDirty(this._activeBuffer.y)), true;
          }
          scrollUp(e3) {
            let t3 = e3.params[0] || 1;
            for (; t3--; ) this._activeBuffer.lines.splice(this._activeBuffer.ybase + this._activeBuffer.scrollTop, 1), this._activeBuffer.lines.splice(this._activeBuffer.ybase + this._activeBuffer.scrollBottom, 0, this._activeBuffer.getBlankLine(this._eraseAttrData()));
            return this._dirtyRowTracker.markRangeDirty(this._activeBuffer.scrollTop, this._activeBuffer.scrollBottom), true;
          }
          scrollDown(e3) {
            let t3 = e3.params[0] || 1;
            for (; t3--; ) this._activeBuffer.lines.splice(this._activeBuffer.ybase + this._activeBuffer.scrollBottom, 1), this._activeBuffer.lines.splice(this._activeBuffer.ybase + this._activeBuffer.scrollTop, 0, this._activeBuffer.getBlankLine(l.DEFAULT_ATTR_DATA));