ANGULAR 2/4 : call function for each row in NgFor

Question

i\'m learning AngularJS, and i need some help.

I have a template like this

Answer 1

this.data = dataFromSomewhere();
this.dataOpt = this.data.map((d) => this.myFunction(d.id));

  
{{dataOpt[i]}}

The pipe variant:

@Pipe({selector: myFunc})
class MyPipy implements PipeTransform {
  transform(val:string) {
    return // do the same calculation here that you would do in `myFunction`;
  }
}

and use it like

  
{{data | myPipe}}

(the pipe needs to be registered in declarations of the module (or in an imported module)