In JavaScript, scope refers to the accessibility and visibility of variables, functions, and objects within a particular part of the code. The two main scopes in JavaScript are local scope and global scope, each with distinct characteristics and implications for variable scoping.
1. Local Scope:
Local scope, also known as function scope, is created whenever a function is defined. Variables declared within a function are scoped to that function and are accessible only within its block. Once the function finishes executing, the local variables are destroyed and no longer accessible. Local scope provides encapsulation, allowing variables to be used within a specific function without interfering with variables in other parts of the code.
Example:
```
javascript`function myFunction() {
var localVar = 'Hello, World!'; // Local variable
console.log(localVar);
}
myFunction(); // Output: Hello, World!
console.log(localVar); // Error: localVar is not d....
Log in to view the answer
