TypeScript enriches JavaScript with features common to statically typed languages, such as enums, which offer a way to define a set of named constants. Enums in TypeScript can be numeric, allowing them to be both a number and a constant, which can lead to unexpected behavior when numbers are passed into functions expecting enums. Despite this, they can be advantageous in scenarios where values, such as those from a JSON payload, are stored numerically in a database. Enums can also be used for bit flags by employing bitwise operations to combine values. Besides numeric enums, TypeScript supports string enums and heterogeneous enums, though the latter can lead to confusion if not used carefully. While enums enhance type safety and clarify "magic values" in applications, improper use can obscure their intended purpose. The article also highlights the importance of understanding the JavaScript output generated by TypeScript enums to avoid potential issues with value assignments.