A data representation that pairs `keys` (some thing you have data about) with `values` (the data itself). A key-value pair could be `telephone` and `555-123-4567`, for instance. Sometimes, values are represented as a list of values, or as an array. Found on http://datavyu.org/user-guide/guide/reference/glossary.html
A data representation that pairs `keys` (some thing you have data about) with `values` (the data itself). A key-value pair could be `telephone` and `555-123-4567`, for instance. Sometimes, values are represented as a list of values, or as an array.