JavaScript 和 JSON 数组
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JavaScript and JSON array
提问by ScG
I am trying to understand how a single and multidimensional javascript array would appear in JSON. Can anyone help me with an example for each?
我试图了解单维和多维 javascript 数组将如何出现在 JSON 中。任何人都可以帮我举一个例子吗？
采纳答案by Justin Ethier
Single-dimensional:
一维：
["one", "two", "three"]
Multi-dimensional:
多维：
[["one", "two", "three"],
["four", "five", "six"]]
回答by schematic
Single array of primitive integers:
单个原始整数数组：
[1, 1, 2, 3, 5, 8]
[1, 1, 2, 3, 5, 8]
Single array of objects:
单个对象数组：
[
{
"title": "hello",
"msg": "world"
},
{
"title": "stack",
"msg": "overflow"
},
{
"title": "json",
"msg": "array"
},
]
Multidimensional array of primitive integers:
原始整数的多维数组：
[
[1, 2, 3],
[4, 5, 6],
[7, 8, 9]
]
回答by CMS
I think you should know what's the difference between JSON and a JavaScript Object literal, they can look exactly the same, but there are some semantic differences.
我认为您应该知道 JSON 和 JavaScript 对象文字之间的区别是什么，它们看起来完全一样，但存在一些语义差异。
JSON is a language-agnosticdata interchange format, proposedby Douglas Crockford on 2006, its grammar differs from the JavaScript Object literals, basically by allowing only string keysand the values MUST be an object, array, number, string, or one of the literal names: false, trueor null.
JSON 是一种与语言无关的数据交换格式，由 Douglas Crockford 于 2006 年提出，其语法与 JavaScript对象字面量不同，基本上只允许字符串键，值必须是对象、数组、数字、字符串或其中之一字面名称：false,true或null.
Speaking about arrays, in JavaScript they can hold any type of value, primitive values like String, Number, Boolean, undefinedor null, and any type of object, even objects with methods, host objects like DOM elements, Dateobjects and so on.
说到数组，在 JavaScript 中，它们可以保存任何类型的值、原始值（如String、Number、Boolean、undefined或null）和任何类型的对象，甚至是带有方法的对象、宿主对象（如 DOM 元素、Date对象等）。
The syntax diagrams of JSON arrays and values might help you:
JSON 数组和值的语法图可能对您有所帮助：
(source: json.org)
（来源：json.org）
(source: json.org)
（来源：json.org）
