Iteration
Iteration is a fundamental programming concept that involves repeatedly executing a block of code or processing elements in a collection, such as arrays or lists, until a specific condition is met. It is a core control flow mechanism used to perform repetitive tasks efficiently, often implemented through loops like for, while, and do-while in various programming languages. This concept enables developers to handle data processing, automation, and algorithmic operations without writing redundant code.
Developers should learn iteration because it is essential for tasks that involve processing multiple data items, such as iterating over arrays to perform calculations, filtering data, or generating outputs. It is widely used in scenarios like data analysis, user interface rendering, and algorithm implementation (e.g., sorting or searching), making code more concise and maintainable compared to manual repetition. Mastering iteration improves problem-solving skills and is a prerequisite for advanced topics like recursion and parallel processing.