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. | The JSON Object is a native JSON Data Type and supported by many MapTool macro functions as an input or output. | ||
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== Examples of JSON Objects == | == Examples of JSON Objects == | ||
A simple object with two name/value pairs. | A simple object with two name/value pairs. | ||
< | <syntaxhighlight lang="mtmacro"> | ||
[h: flower = '{"type":"Rose","color":"Red"}'] | [h: flower = '{"type":"Rose","color":"Red"}'] | ||
</ | </syntaxhighlight> | ||
The same object created with {{func|json.set}}. | The same object created with {{func|json.set}}. | ||
< | <syntaxhighlight lang="mtmacro"> | ||
[h: flower = json.set("","type","Rose","color","Red")] | [h: flower = json.set("","type","Rose","color","Red")] | ||
</ | </syntaxhighlight> | ||
A more complex example with an object in an object. | 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("","type","Rose","color","Red")] | ||
[h: flower = json.set(flower,"quantity",12)] | [h: flower = json.set(flower,"quantity",12)] | ||
[h: order = json.set("","customer","Hopeless Romantic","address","End of Lonely Street", "flower",flower)] | [h: order = json.set("","customer","Hopeless Romantic","address","End of Lonely Street", "flower",flower)] | ||
<pre>[r: json.indent(order,2)]</pre> | <pre>[r: json.indent(order,2)]</pre> | ||
</ | </syntaxhighlight> | ||
Produces: | Produces: | ||
< | <syntaxhighlight lang="javascript"> | ||
{ | { | ||
"customer": "Hopeless Romantic", | "customer": "Hopeless Romantic", | ||
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} | } | ||
} | } | ||
</ | </syntaxhighlight> | ||
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[[Category:Variable Type]] | [[Category:Variable Type]] | ||
{{Languages|JSON Object}} | |||
Latest revision as of 23:59, 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
}
}
-