Method push

src/layer/lines.js:81–93

(cell)

    }
    
    push(cell) {
        if (Array.isArray(cell)) {
            this.cells.push.apply(this.cells, cell);
            var fragment = dom.createFragment(this.element);
            for (var i=0; i<cell.length; i++) {
                fragment.appendChild(cell[i].element);
            }
            this.element.appendChild(fragment);
        } else {
            this.cells.push(cell);
            this.element.appendChild(cell.element);
        }
    }
    
    unshift(cell) {
        if (Array.isArray(cell)) {