JSON array
A JSON array is an ordered JSON value containing zero or more JSON values, represented as a comma-separated sequence enclosed in square brackets.
Acing the CCNA Exam: Volume 2 Advanced Networking and Security
A JSON array is an ordered collection of JSON values enclosed in square brackets.
- How it is used
- Organizes ordered lists within structured JSON data for storage and transmission.
- How deep it goes
- Defines delimiters, ordering, permitted value types, separators, whitespace, and invalid closing syntax.
- Examples
- Uses interface-name lists, mixed random values, allowed IP addresses, and firewall rules containing objects.
- What you can do after
- Evaluate JSON arrays, recognize their value types, and diagnose missing brackets or trailing commas.
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Functional Programming in Scala, Second Edition
A JSON array is an ordered JSON value containing a comma-separated sequence of JSON values enclosed in square brackets.
- How it is used
- Represents ordered collections of JSON values and supplies a concrete target for parser-combinator construction.
- How deep it goes
- Defines the grammar and implements whitespace, separators, recursion, and scoped errors, without describing later semantic processing.
- Examples
- Uses a related-companies list of ticker strings and Scala definitions for JArray, sep, token, and scope.
- What you can do after
- Builds a JSON-array parser that accepts empty or nonempty arrays, nested values, whitespace, and trailing-input checks.
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Just Use Postgres!
A JSON array is an ordered JSON collection of values enclosed in square brackets and accessed by zero-based positions.
- How it is used
- Uses arrays to query and extract nested ingredients from JSON order data.
- How deep it goes
- Demonstrates chained extraction, zero-based indexing, scalar retrieval, and containment checks without discussing array internals.
- Examples
- Uses pizza toppings, vegetable ingredients, tomatoes, onions, and PostgreSQL query output.
- What you can do after
- Apply PostgreSQL's ->, ->>, and @> operators to inspect, index, extract, and filter JSON array contents.
Related concepts
- teacher modelproduced by · A teacher model is a model whose outputs, labels, or learned behavior provide training signals or targets for another model.
- data structurekind of · A data structure is an organized representation of data and its relationships that supports defined operations for storing, accessing, or modifying it.
- JSONkind of · JSON is a standardized, language-independent text format for representing structured data using objects, arrays, strings, numbers, Boolean values, and null.
- serializationproduced by · Serialization is the encoding of structured data or in-memory values into a representation suitable for storage or transmission and later reconstruction.
- JSON objectcontrasts with · A JSON object is an unordered collection of members, each consisting of a string name paired with a JSON value and represented within curly braces.
- @> operatorused by · The PostgreSQL JSON @> operator tests whether one JSON value contains another JSON value.
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