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How to find a variable that is causing scope colision?

i just started a new html project as any other day, but totay i was suprised with scope colision in javascript. The point is i'm trying to declare a variable called top, but i think that i had already declared it in another file and i would like to know if there is a fast way to find this file and fix it.

This is my html:

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>day one</title>
  </head>
  <body>
    <h1>hiii</h1>
    <script src="script.js"></script>
  </body>
</html>

This is my javascript:

let top = [0, 0, 0]

When i open the devtools and look at the console there is an error message there: script.js:1 Uncaught SyntaxError: Identifier 'top' has already been declared (at script.js:1:1)

So i tried to console.log() the top variable and the output was the window

console.log(top)
// same thing as
console.log(window)

So i think that the best approach is trying to find original file where the top variable is, any ideas?

I don't know what to do ;-; HELP PLEASEEEE

Via Active questions tagged javascript - Stack Overflow https://ift.tt/RbYJo8E
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