Method removeChild

src/tree/model/node.js:186–196

(child)

  }

  removeChild(child) {
    const index = this.childNodes.indexOf(child);

    if (index > -1) {
      this.store && this.store.deregisterNode(child);
      child.parent = null;
      this.childNodes.splice(index, 1);
    }

    this.updateLeafState();
  }

  removeChildByData(data) {
    let targetNode = null;