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You have completed (UPI) Chapter 4: Mastering JavaScript Basics: Operators, Variable Scope, and Data Handling!

Instruction

Function Scope

Function Scope A function creates its own scope. Variables declared in the function's scope cannot be accessed from outside. "use strict"; function func_1() { let x = 5; // x can only be used in func_1 alert("Inside function: " + x); } func_1(); alert(x); // Causes an error The function scope is sometimes called the local scope because this was the name in older ECMAScript versions. See a...