Method _forceRenderHeaderRows

src/cdk/table/table.ts:1262–1270

* Clears any existing content in the header row outlet and creates a new embedded view * in the outlet using the header row definition.

()

   * in the outlet using the header row definition.
   */
  private _forceRenderHeaderRows() {
    // Clear the header row outlet if any content exists.
    if (this._headerRowOutlet.viewContainer.length > 0) {
      this._headerRowOutlet.viewContainer.clear();
    }

    this._headerRowDefs.forEach((def, i) => this._renderRow(this._headerRowOutlet, def, i));
    this.updateStickyHeaderRowStyles();
  }

  /**
   * Clears any existing content in the footer row outlet and creates a new embedded view