Basic Erlang Syntax: Understanding Erlang syntax is foundational for writing effective code. Knowledge of basic syntax ensures that the code is readable and maintainable.
Data Types and Variables: Erlang has distinct data types and variable-handling rules. Mastery of these allows for efficient data processing and manipulation.
Pattern Matching: Pattern matching facilitates assigning values to variables based on a specific structure. It simplifies complex condition checks and is crucial for efficient code.
List Manipulation: Lists are a primary data structure in Erlang. Effective list manipulation is essential for managing collections of data.
Recursion: Recursion is a key technique for looping in Erlang. It is fundamental for processing lists and implementing algorithms.
Higher-Order Functions: Higher-order functions can take other functions as arguments or return them. This capability allows for more abstract and potentially reusable code structures.
Error Handling: Erlang's approach to error handling, through techniques like 'let it crash', makes systems robust and fault-tolerant. Understanding this is essential for building resilient applications.
Concurrency Basics: Erlang's concurrency model, based on lightweight processes, is one of its key strengths. Mastering this is vital for developing scalable applications.
Basic OTP Concepts: The Open Telecom Platform (OTP) provides a set of libraries and design principles. These are crucial for building fault-tolerant and scalable systems in Erlang.
File Input/Output: Reading from and writing to files is a common necessity. Proficiency in file I/O operations is essential for many practical applications.
String Manipulation: String operations are fundamental for handling text data. Efficient string manipulation skills are necessary for processing and transforming text.
Simple Algorithm Implementation: Implementing basic algorithms demonstrates problem-solving skills and coding proficiency. This is crucial for evaluating an entry-level developer's capabilities.