How can I stop an alert from being a function?

Question

When I tried to run my code:

var intro = function () {
  alert('Welcome');
  alert('Hello!');
};

intro();

In the browser console, it gave me the error that alert was not a function. Along with all the other alerts in my code. How could I change these alerts and all of my other alerts so that the console doesn't think they're functions?

I'm sorry if this is a bad question, I am a beginner to JS.

Edit: the reason the alerts are in the function is because I thought that that could solve the problem and it didn't.

Answer 1

One and only way to reproduce this case for me is:

 alert = "cv634v5ctwhatever"; var intro = function () { alert('Welcome'); alert('Hello!'); }; intro(); 

Try to figure out when you or some others assign a value to the alert in code.