feat: allow users to delete all table rows

Author: eduardmarcinco

src/table/table-model.class.spec.ts

@@ -475,7 +475,23 @@ describe("Table", () => {
 		expect(tableModel.header.length).toEqual(2);
 	});
 
+	it("should delete all rows", () => {
+		let tableModel  = new TableModel();
+		tableModel.data = [
+			[new TableItem({data: "A"}), new TableItem({data: "B"})],
+			[new TableItem({data: "C"}), new TableItem({data: "D"})],
+			[new TableItem({data: "E"}), new TableItem({data: "F"})]
+		];
 
+		tableModel.deleteAllRows();
+
+		expect(tableModel.data.length).toEqual(0);
+		expect(tableModel.rowsSelected.length).toEqual(0);
+		expect(tableModel.rowsContext.length).toEqual(0);
+		expect(tableModel.rowsExpanded.length).toEqual(0);
+		expect(tableModel.rowsClass.length).toEqual(0);
+		expect(tableModel.rowsIndices.length).toEqual(0);
+	});
 
 	/* ****************************************************************
 	***********                                             ***********

src/table/table-model.class.ts

@@ -411,6 +411,20 @@ export class TableModel implements PaginationModel {
 		this.dataChange.emit();
 	}
 
+	/**
+	 * Deletes all rows.
+	 */
+	deleteAllRows() {
+		this.data = [];
+		this.rowsSelected = [];
+		this.rowsExpanded = [];
+		this.rowsContext = [];
+		this.rowsClass = [];
+		this.rowsIndices = [];
+
+		this.dataChange.emit();
+	}
+
 	hasExpandableRows() {
 		return this.data.some(data => data.some(d => d && d.expandedData)); // checking for some in 2D array
 	}