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Mathew Cook
5,359 Pointsfunction print (message) { }
I was wondering if anyone remembers where this is discussed?
function print(message) { var div = document.getElementById('output'); div.innerHTML = message; }
I've been searching for awhile and have come up short. Or if anyone has some incite on their understanding of it that would be even better.
Thanks in advance, Matt
2 Answers

Felix Sonnenholzer
14,654 PointsHi there,
the video where it is introduced is https://teamtreehouse.com/library/build-a-quiz-challenge-part-2
But I try to explain it as well:
var div = document.getElementById('output');
document
refers to your html and you are looking for a element with an id='output' and store that in the variable.
Now we set the 'inner' html of said element to the content of message
<div id="outer-element">
<div id="here-starts-the-inner-html-from-the-outer-element">
<p>And some more innerHtml from outer element</p>
</div>
</div>
So innerHtml references any html content inside your chosen element. In this case it would be the inner div
and the p
.
You could say innerHtml refers to all the children of the outer-element.
e.g. If I do this:
var div = document.getElementById('outer-element');
div.innerHtml = '<div id="another-element-id"><p>And a changed p tag</p></div>'
Then the above html looks like this:
<div id="outer-element">
<div id="another-element-id">
<p>And a changed p tag</p>
</div>
</div>
Is it clear now?

Mwalima Peltenburg
2,693 Pointsthe element in the video in the index.html is not id='output' but id = 'listDiv' if jou call function print(message){ var div = document.getElementById('listDiv'); div.innerHTML = message; }; it will work

Muhammad Umar
7,817 PointsThank you for pointing that out. I noticed it and was wandering if someone else also caught it :)
Mathew Cook
5,359 PointsMathew Cook
5,359 PointsYes, much clearer now thank you. Just have to use it in some instances to fully understand it.