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JavaScript

Pontus Bolmér
Pontus Bolmér
12,471 Points
Posted by Pontus Bolmér
Pontus Bolmér
12,471 Points

Javascript map

Trying to figure out something about the javascript MAP function

btn.addEventListener('click', (event) => { getJSON(astrosUrl, (json) => { json.people.map( person => { getJSON(wikiUrl + person.name, generateHTML); }); }); event.target.remove(); });

What i want to know is, Where it says json.people.map(person) =>

Is person the callback function we are creating?

1 Answer

Zak Erving
Zak Erving
22,832 Points
Zak Erving
Zak Erving
22,832 Points

Close! You're actually passing an anonymous function, and people is its argument. More specifically, people is the currentValue argument that the callback accepts, as detailed here.

Another way you could write that portion of your code is as follows:

json.people.map(function(person) {
  getJSON(wikiUrl + person.name, generateHTML);
});