JSON Cheat Sheet

Types

{ "string": "Hello, World!", "integer": 25}

String

{ "single-quoted": "Hello, World!", "no-quotes": "Hello, World!"}

Numbers

{ "float": 3.14}

Array

[ "item1", "item2", "item3"]

2D Array

[ [1, 2, 3], [4, 5, 6]]

Objects of Objects

{ "parent": { "child1": "value1", "child2": "value2" }}

Array of Objects

[ { "name": "John", "age": 30 }, { "name": "Jane", "age": 25 }]

Objects of Array

{ "object_with_array": { "key": ["item1", "item2"] }}

Access Object

{ "key": "value"}

Access Array

[ "item1", "item2"]

Access Array of Objects

[ { "name": "John", "age": 30 }]

Access Nested

{ "parent": { "child": "value" }}

{ "defaults": { "adapter": "postgres", "host": "localhost" }, "development": { "adapter": "postgres", "host": "localhost", "database": "dev_db" }, "array": [ "item1", "item2" ], "object_with_array": { "key": ["item1", "item2"] }, "nested": { "parent": { "child": "value" } }}