Scope Introduction
Explore the concept of JavaScript scope to understand how variable accessibility is controlled throughout a program. This lesson explains the difference between global and local scopes, showing how proper scope management helps secure variables, prevent conflicts, and make debugging easier.
We'll cover the following...
We'll cover the following...
Background
Have you ever wondered: who can access a variable that you declare? Imagine assigning a variable to a password or encryption key; if either is compromised, your whole system is compromised. In this scenario, you are likely to restrict access to the variables. You can keep these variables where ...