Problem with Javascript function

Question

Hi . I made a function in Javascript but i always get a bug . Can you say the problem with my function?
Here's the function:

function general() {
a.style.border = 2px solid red ;
a.style.color = "green" ;
}

Answer 1

Is variable 'a' declared? U might want to find it using a selector query. Also i am pretty sure the 2px solid red line should be in quotes.

Answer 2

Yes the variable is declared.
Yeah sorry i forgot quotes . But anyways i still see a bug

Answer 3

Seyyed Abbas Hosseini can u provide more info then? Like an error message or full code?

Answer 4

Lemme send you the error message:

Uncaught TypeError : Cannot read properties of null ( reading 'style' )