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JavaScript JavaScript and the DOM (Retiring) Making Changes to the DOM Getting and Setting Text with textContent and innerHTML

Victoria Loisi
Victoria Loisi
7,070 Points

"Getting and Setting Text with textContent and innerHTML" video: I keep receiving TypeError message

I'm trying to follow along and I'm typing in the console:

let myHeading = document.querySelector('h1');

and then:


But I keep receiving the message

"TypeError: myHeading is undefined".

Why? And what can I do to solve it? I'm using Firefox browser.


1 Answer

Steven Parker
Steven Parker
230,248 Points

Two issues come to mind:

  • do you have an h1 element in the HTML code?
  • what is the line "myHeading.textContent;" for? It accesses the property but does nothing.

For issues dealing with multiple files, it might be better to make a snapshot of your workspace and post the link to it here.