title: Angular Mat Table Column Select and Deselect
body: <p>Please go through link <a href="https://stackblitz.com/edit/angular-primeng-table-order-resize-toggle?file=src%2Fapp%2Fapp.component.html" rel="nofollow noreferrer">https://stackblitz.com/edit/angular-primeng-table-order-resize-toggle?file=src%2Fapp%2Fapp.component.html</a> As per the link I need to do for Angular Mat table selecting and deselecting columns.</p>