Cannot read property 'innerHTML' of null in IF statement

Question

I have the error:

"Cannot read property 'innerHTML' of null" at attacked (JS.js:172).

However the concerned line is:

if (document.getElementById("enem").innerHTML  != null)

Which was made especially to solve this problem (last time I had this problem so I added this IF and it's still erroneous.

Why would you expect an `if` statement checking if `innerHTML` exists to solve the problem of whether the element exists? — , Sep 09 '17 at 13:45

score 0 · Answer 1 · answered Sep 09 '17 at 13:19

0

Most probably the element enem does not exist. You should instead check if the element exists:

if (document.getElementById("enem")) {
   // element exists

} else {
   // element does not exist

}

and then you can go ahead if the element exists.

answered Sep 09 '17 at 13:19

Moritz Pfeiffer

1 Answers1