Is a variable environment global or limited in scope?

A variable named environment can be either global or local, depending on where and how it is declared.

• If environment is declared outside of functions and classes (for example, at the module or file level), then it is global and accessible throughout the module or program.
• If environment is declared inside a function, method, or block, then it has local scope and is only accessible within that block.

For example, in JavaScript:

let environment = 'production'; // global variable

function test() {
  let environment = 'development'; // local variable, shadows the global one
  console.log(environment); // 'development'
}

console.log(environment); // 'production'

Therefore, to determine the scope of the environment variable, you need to look at where it is declared.