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Programming Concepts Beginner

What is Technical Debt?

The implied cost of additional rework caused by choosing a quick solution now instead of a better approach that would take longer.

Technical debt is a metaphor comparing shortcuts in code to financial debt — borrowing speed now costs interest (maintenance burden) later. Types include deliberate debt (conscious trade-offs for deadlines), accidental debt (poor design due to inexperience), and bit rot (code degrading as requirements evolve). Symptoms include slow feature development, frequent bugs, long onboarding times, and fear of changing code. Managing technical debt requires tracking it explicitly, allocating time for repayment (refactoring sprints), preventing accumulation (code review, testing), and making debt visible to stakeholders. Some technical debt is strategic; unmanaged debt is dangerous.

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A data structure that follows Last-In-First-Out (LIFO) ordering, where elements are added and removed from the same end (top).
Version Control
A system that records changes to files over time, allowing you to recall specific versions, collaborate, and track history.
Hash Table
A data structure that maps keys to values using a hash function, providing average O(1) time complexity for lookups, insertions, and deletions.
Concurrency
The ability of a program to manage multiple tasks that can make progress during overlapping time periods.
Race Condition
A bug that occurs when the behavior of software depends on the timing or order of uncontrolled events like thread scheduling.
Thread
The smallest unit of execution within a process, allowing concurrent operations to run within a single program.
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