How do I learn an existing code base?

7 Tips to Learn an Existing Code Base Faster

1. Find a Mentor.
2. Look for Pair Programming Opportunities.
3. Get an Overview.
4. Understand the Why of the Application.
5. Start with Small Quests.
6. Talk It Out.
7. Have a Don’t-Get Stuck Rule.

What is a legacy code base?

Legacy code is old computer source code. It could simply refer to an organization’s existing code base which has been written over many years, or it could imply a codebase that is in some respect obsolete or supporting something obsolete.

How do I get a familiar with a code base?

How to Get Familiar With A New Codebase

1. Run the App as An End-User. You should run the live app and look out for app functions, you should scan through the app looking out for possible modules that the code could be divided into.
2. Study the Code and Ask Questions.
3. Rewrite.
4. Conclusion.

How do you familiarize yourself with a new codebase?

1. RTFM first. Read any documentation the software might be associated with, first thing.
2. Build it, break it, shake it(no pun intended Savage Garden)
3. Read the automation tests.
4. Start reading and drawing things.
5. Trace the full process in detail.
6. Rinse and repeat.
7. (Optional) Try adding a new feature or solve a bug.
8. Books to read.

What is legacy language?

A ProgrammingLanguage which is still used in production code, but only in LegacySystems. In other words, where the language is typcally only selected when its use is a bona fide requirement, usually due to the need to interface with zillions of lines of code that already exist.

How do you deal with legacy systems?

How to deal with legacy systems, the Achilles’ Heel of digital…

1. Do not modernize systems ahead of the curve.
2. For reuse, expose the business logic within the systems.
3. Change legacy systems during the building of business capabilities.
4. Build a digital backbone for service architectures.