README.md

CS Answers

A collection of answers I gave on Quora, categorised and easier to find.

Eventualmente essas respostas vão ser traduzidas para português e adicionadas à pasta pt-br. Eu não vou aceitar PRs de tradução porque eu gasto mais tempo revisando a tradução dos outros do que traduzindo :x

JavaScript specifics/internals

• How does type coercion in JavaScript work?
• How does this in JavaScript work?
• How does v8 optimise .map/filter/similar methods?

Java specifics/internals

• How is string concatenation implemented in the Hotspot JVM?

Object-Oriented Programming

• In which ways is OOP better than structured programming?
• In which contexts is using OOP a bad idea?
• What is this in OOP? What's it used for?
• What's the difference between this in Java and JavaScript?
• What's Object Capability Security? Why is it important?
• What are the problems of Object-Oriented Programming?

Functional Programming

• How does Functional Programming reduce side-effects?

Type Systems

• What are the advantages of typed languages?
• What are type refinements (in Flow/TypeScript)? Why are they useful?
• What is 'weak typing' and 'strong typing'?

Safety, Testing, Verification, etc.

• What is a safe programming language?

Programming Language Implementation

• Why are JIT compilers useful?
• Why does Python use .pyc files?
• How do languages with immutable data deal with memory problems?
• How do you design and implement a programming language?

Programming Language Design

• Why do designers limit what a programming language can do?
• In which ways is JavaScript not a well-designed language?
• What's OOP and FP? In which ways are they similar? In which ways are they different?

Fundamental Computer Science Concepts

• What are tail calls? Why are they important?
• What's polymorphism?
• What are data structures? Why are they important?

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