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JavaScript Asynchronous Programming with JavaScript Understanding Promises From Callbacks to Promises

Posted by Alejandro Bryan
Alejandro Bryan
10,923 Points

I'm having a lot of problems with the Promises call.

hi guys! I'm having a lot of problems with promise call, even if I write the same code as the teacher, it seems to be a broken link, I feel me somehow like a stupid person. maybe I'm gut enough to learn how to program.

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

It might be something as simple as a little typo. Show your code and we can take a look. Even better, make a snapshot of your workspace and post the link to it here.

5 Answers

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

This one's not your fault. This issue is due to two 3rd-party API's having a disagreement about spelling. :see_no_evil: An improvement would be to display the original name with a message indicating that the profile wasn't found. Code that could automatically resolve this kind of thing in a generic way would be rather complex.

But if you don't mind applying a temporary (and potentially brittle) fix for these specific cases, you could just translate the names as you look up the profiles:

function getProfiles(json) {
  const profiles = json.people.map( person =>
    getJSON(wikiUrl + person.name.replace("Anatoly", "Anatoli")
                                 .replace("Chris", "Christopher"))
  ); 
  return Promise.all(profiles);
}
Alejandro Bryan
Alejandro Bryan
10,923 Points
Alejandro Bryan
Alejandro Bryan
10,923 Points

https://w.trhou.se/woylerw3v1

Alejandro Bryan
Alejandro Bryan
10,923 Points
Alejandro Bryan
Alejandro Bryan
10,923 Points

I appreciated your help. thanks a lot

Murilo de Melo
Murilo de Melo
14,456 Points
Murilo de Melo
Murilo de Melo
14,456 Points

Hi Alejandro, tnx for your question. I'm getting the same problem. And tnx Steven too for the help :) That's very bad considering that a huge desaster because of such a mere issue of spelling.

Mike Campbell
Mike Campbell
19,847 Points
Mike Campbell
Mike Campbell
19,847 Points

Actually, that solution looks pretty good. It only works if you know it's misspelled though. I scratched my head for a while when I was trying to figure it out.