Pure Functions
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What is Pure Functions?
Pure functions are a type of function in programming where the output is solely determined by its input values, without any side effects. This means that for the same input, a pure function will always return the same output, and it does not modify any state outside of its own scope. They are deterministic, predictable, and make code easier to test and reason about.
Free resources to learn Pure Functions
More in stage 3: Object Oriented Programming
- Object Oriented Programming
- Be consistent
- Meaningful names over comments
- Indentation and Code Style
- Keep methods / classes / files small
- Minimize cyclomatic complexity
- Avoid passing nulls, booleans
- Keep framework code distant
- Use correct constructs
- Tests should be fast and independent
- Organize code by actor it belongs to
- Command query separation
- Keep it simple and refactor often
Pure Functions: common questions
Can I learn Pure Functions in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Pure Functions in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Pure Functions tutorial for beginners?
It is lesson 20 of 94 in the free Software Design and Architecture roadmap, in stage 3, Object Oriented Programming. If you are new to Software Design and Architecture, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.