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JavaScript Interactive Web Pages with JavaScript Selecting Elements and Adding Events with JavaScript Adding Events

Iulia Mihet
Iulia Mihet
5,770 Points
Posted by Iulia Mihet
Iulia Mihet
5,770 Points

I wrote 3 different valid solutions in the coding challenge, and neither is accepted by the program. What to do?

First, I wrote

sayButton.on ("click", greeting()); sayButton.onclick(greeting()); sayButton.click(greeting());

I know they work, because the alert window appears every time, saying "Hello World!"... This is very frustrating.

app.js 
var sayButton = document.getElementById("say");
var greeting = function() {
  alert("Hello World!");
}
sayButton.onclick(greeting());
index.html 
<!DOCTYPE html>
<html>
<head></head>
<body>
<button id="say">Say "Hello World!"</button>
<script src="app.js"></script>
</body>
</html>

2 Answers

Alex Heil
Alex Heil
53,547 Points
Alex Heil
Alex Heil
53,547 Points

hey Iulia Mihet, no worries - we'll get that sorted out ;) so let's walk through the question: After line 4 in the app.js file, assign the greeting event handler to the click event on the sayButton.

part1: greeting should be assigned to something, this would look like this:

greeting =

part2: we want the click event handler of the sayButton, like this:

sayButton.onclick

now when we bring them together it will work fine:

greeting = sayButton.onclick;

hope that helps and have a nice day ;)

Alex Heil
Alex Heil
53,547 Points
Alex Heil
Alex Heil
53,547 Points

you're welcome Iulia - glad to hear that this helped you out ;)

Seth Kroger
Seth Kroger
56,414 Points
Seth Kroger
Seth Kroger
56,414 Points

It's specifically asking you to use assignment, ie. =, to do set the button's onclick:

sayButton.onclick = greeting;