Have `Object.keys` accessible in the template and use it in `*forEach`.
@Component({
selector: 'app-myview',
template: `<div *ngFor="let key of objectKeys(items)">{{key + ' : ' + items[key]}}</div>`
})
export class MyComponent {
objectKeys= Object.keys;
items = {keyOne: 'value 1', keyTwo: 'value 2', keyThree: 'value 3'};
constructor(){}
}