feat: add rows count (#32)

Author: ajunior

table.go

@@ -939,3 +939,8 @@ func (t *Table) Render() {
 func (t *Table) IsEmpty() bool {
 	return len(t.data) == 0
 }
+
+// RowCount returns the number of rows in the table.
+func (t *Table) RowCount() int {
+	return len(t.data)
+}

table_test.go

@@ -830,3 +830,13 @@ func Test_TableIsNotEmpty(t *testing.T) {
 	table.AddRow("4", "5", "6")
 	assert.Equal(t, false, table.IsEmpty())
 }
+
+func Test_TableRowCount(t *testing.T) {
+	builder := &strings.Builder{}
+	table := New(builder)
+	table.SetHeaders("A", "B", "C")
+	assert.Equal(t, 0, table.RowCount())
+	table.AddRow("1", "2", "3")
+	table.AddRow("4", "5", "6")
+	assert.Equal(t, 2, table.RowCount())
+}