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In computer software, JSONPath is a query language for querying values in JSON. The uses of JSONPath include: Selecting a specific node in a JSON value; Retrieving a set of nodes from a JSON value, based on specific criteria; Navigating through complex JSON values to retrieve the required data.
A tabular data card proposed for Babbage's Analytical Engine showing a key–value pair, in this instance a number and its base-ten logarithm. A key–value database, or key–value store, is a data storage paradigm designed for storing, retrieving, and managing associative arrays, and a data structure more commonly known today as a dictionary or hash table.
Keys are unique identifiers which map to particular values, which in turn can be anything from addresses, to documents, to arbitrary data. [2] Responsibility for maintaining the mapping from keys to values is distributed among the nodes, in such a way that a change in the set of participants causes a minimal amount of disruption.
The keys and values can be of any type, except nil. The following focuses on non-numerical indexes. A table literal is written as { value, key = value, [index] = value, ["non id string"] = value }. For example:
Many field values may contain a quality (q) key-value pair separated by equals sign, specifying a weight to use in content negotiation. [9] For example, a browser may indicate that it accepts information in German or English, with German as preferred by setting the q value for de higher than that of en, as follows: Accept-Language: de; q=1.0 ...
She is forever frozen in time. JonBenét Ramsey — 6 years old, dressed for a beauty pageant. And we still don't know who killed her. The day after Christmas in 1996, JonBenét was reported ...
The winner of Sunday night's game will become just the ninth team in NFL history to finish a regular season with 15 or more wins. The loser will have the most wins of any wild-card team in history.
A name–value pair, also called an attribute–value pair, key–value pair, or field–value pair, is a fundamental data representation in computing systems and applications. Designers often desire an open-ended data structure that allows for future extension without modifying existing code or data.