Pros:

• You can write and review code instantly.
• No program / platform is required other than your browser.
• It's free to use.
• Easy to use.
• There is a complete guide.
• There is a wide selection of programming languages.

Cons:

Nothing.

My Thought:

Actually this kind of concept has been widely adopted, but I still love it.

Note: This is just "My Personal Opinion & Assessment", not intended to "Judge" the reviews you have made.

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