Step 1: Generating Fibonacci Numbers
We're creating a special function called fibGenerator that helps us make Fibonacci numbers. These are numbers where each one is the sum of the two before it. Like 0, 1, 1, 2, 3, 5, 8, and so on.

Step 2: Setting Up
Inside our function, we're starting with current set to 0 and next set to 1. These are our starting numbers.

Step 3: Looping Forever
We're going to keep doing something over and over again. That's what while (true) means. In this case, we're going to keep making Fibonacci numbers forever.

Step 4: Getting the Next Number
Each time we go through the loop, we're going to give out a number (yield current). Then, we'll update current to be the same as next, and next to be the sum of the previous next and current.

Example Usage: Below the generator function, an example usage is provided using comments. It demonstrates how to create an instance of the generator (const gen = fibGenerator();) and retrieve Fibonacci numbers using the next() method. Each call to gen.next().value returns the next Fibonacci number in the sequence.

In summary, this code defines a generator function fibGenerator that generates Fibonacci numbers indefinitely. It demonstrates how to use generator functions in JavaScript to efficiently generate sequences like the Fibonacci sequence.

Destructuring Assignment:

• It's like unpacking a box of goodies into individual spots.
• Helps in assigning values from an array or object to variables in a concise way.
• In our Fibonacci code, it neatly assigns the values from the Fibonacci sequence array to current and next variables.

JavaScript Function Generators:

• They're magical factories that produce an endless supply of something.
• Defined using the function* keyword.
• Utilizes the yield keyword to output values one at a time.
• In our Fibonacci code, the generator continuously generates Fibonacci numbers on demand, creating an infinite sequence.