Method getNode

src/tree/model/tree-store.js:71–74

(data)

  }

  getNode(data) {
    const key = typeof data !== 'object' ? data : getNodeKey(this.key, data);
    return this.nodesMap[key];
  }

  insertBefore(data, refData) {
    const refNode = this.getNode(refData);