export class TableEditDemo implements OnInit {

    cars: Car[];

    cols: any[];

    constructor(private carService: CarService) { }

    ngOnInit() {
        this.carService.getCarsSmall().then(cars => this.cars = cars);

        this.cols = [
            { field: 'vin', header: 'Vin' },
            { field: 'year', header: 'Year' },
            { field: 'brand', header: 'Brand' },
            { field: 'color', header: 'Color' }
        ];
    }
}

<p-table [columns]="cols" [value]="cars">
    <ng-template pTemplate="header" let-columns>
        <tr>
            <th>Vin</th>
            <th>Year</th>
            <th>Brand</th>
            <th>Color</th>
        </tr>
    </ng-template>
    <ng-template pTemplate="body" let-rowData let-columns="columns">
        <tr>
            <td pEditableColumn>
                <p-cellEditor>
                    <ng-template pTemplate="input">
                        <input type="text" [(ngModel)]="rowData.vin">
                    </ng-template>
                    <ng-template pTemplate="output">
                        {{rowData.vin}}
                    </ng-template>
                </p-cellEditor>
            </td>
            <td pEditableColumn>
                <p-cellEditor>
                    <ng-template pTemplate="input">
                        <input type="text" [(ngModel)]="rowData.year" required>
                    </ng-template>
                    <ng-template pTemplate="output">
                        {{rowData.year}}
                    </ng-template>
                </p-cellEditor>
            </td>
            <td pEditableColumn>
                <p-cellEditor>
                    <ng-template pTemplate="input">
                        <input type="text" [(ngModel)]="rowData.brand">
                    </ng-template>
                    <ng-template pTemplate="output">
                        {{rowData.brand}}
                    </ng-template>
                </p-cellEditor>
            </td>
            <td pEditableColumn>
                <p-cellEditor>
                    <ng-template pTemplate="input">
                        <input type="text" [(ngModel)]="rowData.color">
                    </ng-template>
                    <ng-template pTemplate="output">
                        {{rowData.color}}
                    </ng-template>
                </p-cellEditor>
            </td>
        </tr>
    </ng-template>
</p-table>