Why does my variable show it's deprecated?

Question

My editor (VS Code) shows that my variable name is deprecated. The variable name is struck out from the 2nd line. Can you help?

let name = 'Mark';
name = 5;
console.log(name);

Answer 1

In a browser, the global name variable has special meaning. This has caused people a lot of confusion over the years as they tried to create their own global variable named name and then found it coerced into a string.

The checker you are using doesn't appear able to special case an assignment to name if it follows a declaration of let name.

You can see that the message goes away if you put the code inside a function.