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JavaScript Callback Functions in JavaScript Introduction to Callback Functions Creating an Anonymous Callback Function

Blake Collins
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Blake Collins
Front End Web Development Techdegree Graduate 20,564 Points
Posted by Blake Collins
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Blake Collins
Front End Web Development Techdegree Graduate 20,564 Points

Callback Function Challenge

I'm having a hard time passing this challenge. I think I'm missing something simple but can't figure it out.

app.js 
() => {
  console.log("Hello World!");
}

functionRunner () =>
index.html 
<!DOCTYPE html>
<html lang="en">
    <head>
        <title></title>
        <link rel='stylesheet' href='styles.css'>
    </head>
    <body>
        <section>
            <p>Open your browser's console to see the results</p>
        </section>
        <script src='runner.js'></script>
        <script src='app.js'></script>
    </body>
</html>
runner.js 
function functionRunner(callback) { 
  callback();
}

1 Answer

Dimitar Dimitrov
Dimitar Dimitrov
11,800 Points
Dimitar Dimitrov
Dimitar Dimitrov
11,800 Points

First you just need to delete the log name form the function declaration, then you copy the new anonymous function in the functionRunner() call as a paramether like this :

functionRunner(function() {
  console.log("Hello World!");
});