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JavaScript

Posted by Sharina Jones
Sharina Jones
Courses Plus Student 18,771 Points

Where is callback defined?

I don't understand where callback is defined in the following code. Is this a recursive function call?

'use strict';

function getData({ url, method = 'post' } = {}, callback) {
 callback(url, method);
}

getData({ url: 'myposturl.com' }, function (url, method) {
 console.log(url, method);
});

1 Answer

Dave StSomeWhere
Dave StSomeWhere
19,870 Points

The MDN Callback function might help explain.

So in the example the callback is the function being passed (after the comma)

getData({ url: 'myposturl.com' }, function (url, method) {
 console.log(url, method);
Sharina Jones
Sharina Jones
Courses Plus Student 18,771 Points

I see it now, lol! The whole thing just looked so confusing, I couldn't wrap my head around it. Thanks!