Mapping

Definitions

1. An association between keys and values (like a dictionary or hash map), or the operation of applying a function to every element of a collection to produce a new collection.

   In plain English: Either a data structure that pairs keys with values (like a phone book) or the act of running the same operation on every item in a list.

   Example: "Map over the array to transform each user object into just their email address."

Related Terms

• Algebraic Data Type
• Category
• Closure
• Computation Expression
• Cons
• Continuation
• STL
• JSON Pointer
• LRU
• Map
• Persistent Data Structure
• Reverse Iterator
• Subtree