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

Posted by michael williams
michael williams
19,492 Points

code challenge selecting by id I am not quite sure what the instructions are asking in task 1.

Right now I have:

<code> 
let button;
let input;
const sayPhrase = document.getElementById('sayPhrase');

button.addEventListener('click', () => {
sayPhrase.value;
});
</code>

But I know something is missing or I am way off.

js/app.js 
let button;
let input;
const sayPhrase = document.getElementById('sayPhrase');

button.addEventListener('click', () => {
  sayPhrase.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

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

You have the right value, but put it in the wrong variable.

The instructions say, "There is a variable named button in app.js. Set its value to contain a reference to the button element in index.html with the ID of sayPhrase."

You got a reference to the correct button, but instead of putting it in button, you put it in a new variable named sayPhrase.

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

Jason Anders — or maybe it's the time difference between just answering the question and writing an elegant tutorial. :white_flower: :wink:

michael williams
michael williams
19,492 Points

thanks steven! i appreciate it!

Jason Anders
MOD
Jason Anders
Treehouse Moderator 145,860 Points
Jason Anders
Jason Anders
Treehouse Moderator 145,860 Points

Hey Michael,

You have the right syntax for selecting the id, but you aren't assigning it to the correct variable.

The challenge did not ask you to create the const sayPhrase ... as you have. It wants the result of the selection to be assigned to the button variable. So, you need to delete the variable you created and move the selector to the button.

Keep in mind for future challenges that the instructions are very specific and very picky. If you add something that wasn't asked for, deleted something that you weren't told to, or even forget a period in a string... the challenge will throw a Bummer!.

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

button.addEventListener('click', () => {
  alert(input.value);
});

Keep Coding! :dizzy:

michael williams
michael williams
19,492 Points

thank you for your help!!