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

Posted by David Jensen
David Jensen
6,339 Points

Is there any easy way to find the correct answer when I can't figure it out (e.g. answer key or something like that)?

so... I run into this problem all the time. For some challenges I can't figure out the right answer and simply have to skip the challenge. It would be nice if Treehouse would provide an answer key somewhere...

app.js 
var sayButton = document.getElementById("say");
var greeting = function() {
  alert("Hello World!");
};

onClick.sayButton = greeting;
index.html 
<!DOCTYPE html>
<html>
<head></head>
<body>
<button id="say">Say "Hello World!"</button>
<script src="app.js"></script>
</body>
</html>

1 Answer

jobbol
seal-mask
.a{fill-rule:evenodd;}techdegree
jobbol
Full Stack JavaScript Techdegree Student 16,610 Points
jobbol
.a{fill-rule:evenodd;}techdegree
jobbol
Full Stack JavaScript Techdegree Student 16,610 Points

You're on the right track, but you did it backwards.

What you wrote

onClick.sayButton = greeting;

What it should be

sayButton.onclick = greeting;

For one, capitalization is very sensitive. onclick is all lowercase.

Secondly you did the dot notation backwards. Think of it as a possessive property: man's coat, baby's rattle, child's toy. Dot notation is just like that, but for programming: element.onclick.

More documentation and usage for onclick.

Good luck out there!