Is there a way to concatenate a string parameter with observer next() method parameter?-CodePudding

I have such a method:

public getContentForGivenFields(fields: any) {
    this.content$.subscribe({
      next: res => {
        console.log(res.fields); // res.first_name => {first_name object}
      }
    })
  }

And the 2nd method that calls the 1st one:

public getPersonName() {
    this.service.getContentForGivenFields("first_name");
  }

I want the first method to take its parameter and use it in the way that I showed above. If you know another way - please, share!

Thanks :)

CodePudding user response：

You want to pass few names and concatenate those fields? or just one property? if one then res[fieldName] otherwise fields.map(field => res[field]).join(' ') or sth similar;

or you can use pluck operator and then concatenate result