Method _updateDefaultNodeDefinition

src/cdk/tree/tree.ts:311–317

()

  }

  private _updateDefaultNodeDefinition() {
    const defaultNodeDefs = this._nodeDefs.filter(def => !def.when);
    if (defaultNodeDefs.length > 1 && (typeof ngDevMode === 'undefined' || ngDevMode)) {
      throw getTreeMultipleDefaultNodeDefsError();
    }
    this._defaultNodeDef = defaultNodeDefs[0];
  }

  /**
   * Sets the node type for the tree, if it hasn't been set yet.