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

Posted by Adriana Ingwerson
Adriana Ingwerson
4,115 Points

What am I missing?

I don't know exactly what I'm missing. I added the getElementId for the button in HTML that is named 'sayPhrase'

js/app.js 
let button = 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>

3 Answers

HIDAYATULLAH ARGHANDABI
HIDAYATULLAH ARGHANDABI
21,058 Points
HIDAYATULLAH ARGHANDABI
HIDAYATULLAH ARGHANDABI
21,058 Points

Dear Adriana, actually you did great work here. I am happy you have understand the question very well. But you forget a small detail. The Document method getElementById() returns an Element object representing the element whose id property matches the specified string. For example 

let variableName= document.getElementById(id);

so you were close to answer you forget the document method before the getElementById

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

I am sure you understand now better. Please leave any other question leave a comment

EnjoyCoding

Adriana Ingwerson
Adriana Ingwerson
4,115 Points

That’s what I wrote though.

HIDAYATULLAH ARGHANDABI
HIDAYATULLAH ARGHANDABI
21,058 Points
HIDAYATULLAH ARGHANDABI
HIDAYATULLAH ARGHANDABI
21,058 Points

Please try it again it should work i Checked it

Jackie Santana
Jackie Santana
7,403 Points
Jackie Santana
Jackie Santana
7,403 Points

try writing everything in lowercase.. that may solve the issue

HIDAYATULLAH ARGHANDABI
HIDAYATULLAH ARGHANDABI
21,058 Points
HIDAYATULLAH ARGHANDABI
HIDAYATULLAH ARGHANDABI
21,058 Points

No you cannot write everything in lower case

Timothy Grindall
Timothy Grindall
7,843 Points
Timothy Grindall
Timothy Grindall
7,843 Points

getElementById is a child function of the document object. You need to write:

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

As Hidayatullah Arghandabi pointed out.