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JavaScript JavaScript and the DOM (Retiring) Getting a Handle on the DOM Selecting by Id

Posted by Ryan Von Besser
Ryan Von Besser
1,925 Points

I'm not sure what I am doing wrong here, maybe I don't understand what the task is asking me to do. Not sure.

let button = document.getElementByID("sayPhrase");

and I get this error: undefined is not a variable team treehouse (evaluating 'document.getElementByID("sayPhrase")')

js/app.js 
let button = document.getElementByID("sayPhrase");
let input;

button.addEventListener('click', () => {
  alert(input.value);
});
index.html 
<!DOCTYPE html>
<html>
  <head>
    <title>Phrase Sayer</title>
  </head>
  <body>
    <p><input type="text" id="phraseText"></p>
    <p><button id="sayPhrase">Say Phrase</button></p>
    <script src="js/app.js"></script>
  </body>
</html>

2 Answers

Konrad Traczyk
Konrad Traczyk
22,287 Points
Konrad Traczyk
Konrad Traczyk
22,287 Points

Hello Ryan

You have a type-o in function name, use getElementById instead of getElementByID.

Hope it helps

Blayne Holland
Blayne Holland
19,321 Points
Blayne Holland
Blayne Holland
19,321 Points

Code is correct, theres a syntax error. Its suppose to be document.getElementById instead of document.getElementByID

let button = document.getElementById("sayPhrase");