Execution Context in JavaScript (second part)

What is Execution Context?
Execution context is the environment in which JavaScript code runs. It contains information about variables, functions, and the value of this.

Types of Execution Context:

1. Global Execution Context:
This is the default context where your JavaScript code runs initially. It creates a global object (like a window in browsers) and allows access to global variables and functions.

2. Function Execution Context:
Created whenever a function is called. It holds the function's parameters, local variables, and values. Each function call has its context.

3. Eval Execution Context:
We created when using the eval() function to execute code represented as a string.

Execution Context Stack :
JavaScript uses a stack to manage execution contexts. When a function is called, its context is pushed onto the stack. When it finishes, the context is popped off.

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