Angular ForEach in Angular4/Typescript?

Question

I see many answers about using ngFor when I search for this, but I understand ngFor. I\'m asking about the angular.forEach() constructor used in my Angular 1 contr

Answer 1

arrayData.forEach((key : any, val: any) => {
                        key['index'] = val + 1;

                        arrayData2.forEach((keys : any, vals :any) => {
                            if (key.group_id == keys.id) {
                                key.group_name = keys.group_name;
                            }
                        })
                    })