JSON Object: Difference between revisions
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{{ | {{Languages|JSON Object}} | ||
The JSON Object is a native JSON Data Type and supported by many MapTool macro functions as an input or output. | |||
[http://www.json.org JSON.org] defines it like this: | |||
<blockquote>An object is an '''unordered''' set of name/value pairs. An object begins with {{code|{}} (left brace) and ends with {{code|<nowiki>}</nowiki>}} (right brace). Each name is followed by {{code|:}} (colon) and the name/value pairs are separated by {{code|,}} (comma). | |||
</blockquote> | |||
The values in an object's name/value pairs may be of any of the supported JSON Data Types: Number, String, Object, Array, Boolean and Null. The names must be strings. | |||
== Examples of JSON Objects == | |||
A simple object with two name/value pairs. | |||
<syntaxhighlight lang="mtmacro"> | |||
[h: flower = '{"type":"Rose","color":"Red"}'] | |||
</syntaxhighlight> | |||
The same object created with {{func|json.set}}. | |||
<syntaxhighlight lang="mtmacro"> | |||
[h: flower = json.set("","type","Rose","color","Red")] | |||
</syntaxhighlight> | |||
A more complex example with an object in an object. | |||
<syntaxhighlight lang="mtmacro"> | |||
[h: flower = json.set("","type","Rose","color","Red")] | |||
[h: flower = json.set(flower,"quantity",12)] | |||
[h: order = json.set("","customer","Hopeless Romantic","address","End of Lonely Street", "flower",flower)] | |||
<pre>[r: json.indent(order,2)]</pre> | |||
</syntaxhighlight> | |||
Produces: | |||
<syntaxhighlight lang="javascript"> | |||
{ | |||
"customer": "Hopeless Romantic", | |||
"address": "End of Lonely Street", | |||
"flower": { | |||
"type": "Rose", | |||
"color": "Red", | |||
"quantity": 12 | |||
} | |||
} | |||
</syntaxhighlight> | |||
- | |||
[[Category:Variable Type]] | [[Category:Variable Type]] | ||
{{Languages|JSON Object}} |
Latest revision as of 05:11, 20 September 2024
The JSON Object is a native JSON Data Type and supported by many MapTool macro functions as an input or output.
JSON.org defines it like this:
An object is an unordered set of name/value pairs. An object begins with
{
(left brace) and ends with}
(right brace). Each name is followed by:
(colon) and the name/value pairs are separated by,
(comma).
The values in an object's name/value pairs may be of any of the supported JSON Data Types: Number, String, Object, Array, Boolean and Null. The names must be strings.
Examples of JSON Objects
A simple object with two name/value pairs.
[h: flower = '{"type":"Rose","color":"Red"}']
The same object created with json.set().
[h: flower = json.set("","type","Rose","color","Red")]
A more complex example with an object in an object.
[h: flower = json.set("","type","Rose","color","Red")]
[h: flower = json.set(flower,"quantity",12)]
[h: order = json.set("","customer","Hopeless Romantic","address","End of Lonely Street", "flower",flower)]
<pre>[r: json.indent(order,2)]</pre>
Produces:
{
"customer": "Hopeless Romantic",
"address": "End of Lonely Street",
"flower": {
"type": "Rose",
"color": "Red",
"quantity": 12
}
}
-