Working with Existing Code & Best Practices

Use Cases:

• Explain this function.
• Refactor this code to improve performance.
• Adapt this script using numpy.

Key insights:

• Copilot uses what you have open.
• It does NOT fully understand the whole repo automatically.

Tip: Open multiple relevant files.

Best practices

• Boilerplate code.
• Quick scripts.
• Code exploration.

Limitation

• Incorrect or hallucinated code → always review.
• Security / sensitive data.
• Hidden assumptions.

Copilot is not going to make you a better engineer, but it can make you way more efficient