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JavaScript JavaScript and the DOM Getting a Handle on the DOM Select by ID

Sunyul Kim
Sunyul Kim
1,732 Points
Posted by Sunyul Kim
Sunyul Kim
1,732 Points

how to complete the first task of selecting by ID from JavaScript and the DOM

how do you complete the first task of selecting by ID from JavaScript and the DOM

app.js 
const btnUpdate = document.getElementById('btn-phrase');
const button = document.getElementById('click');

btnUpdate.addEventListener('click', () => {
  alert(input.value);
});
index.html 
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>Phrase Sayer</title>
  </head>
  <body>
    <h1 id = 'click'> Type a phrase <\h1>
    <button id = "btn-phrase"> Update Heading<\button>
    <p><label for="input-phrase">Type a phrase</label></p>
    <p><input type="text" id="input-phrase"></p>
    <p><button id="btn-phrase">Say Phrase</button></p>
    <script src="app.js"></script>
  </body>
</html>

1 Answer

Steven Parker
Steven Parker
244,163 Points
Steven Parker
Steven Parker
244,163 Points

For this task, you only need to declare and assign the button variable in app.js. You don't need to create any other variables, and you don't need to modify index.js.

See the answer I provided in your previous question