json.count: Difference between revisions
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|description= | |description= | ||
Returns the number of occurrences of a value in a [[JSON Array]]. If the value does | Returns the number of occurrences of a value in a [[JSON Array]]. If the value does | ||
not occur in the [[JSON Array]] then {{code| -1}} is returned. The index for the [[JSON Array]] | not occur in the [[JSON Array]] then {{code|-1}} is returned. The index for the [[JSON Array]] | ||
starts at 0. | starts at {{code|0}}. | ||
|usage= | |usage= | ||
<source lang="mtmacro" line> | <source lang="mtmacro" line> | ||
json.count(array, value)] | |||
</source> | </source> | ||
<source lang="mtmacro" line> | <source lang="mtmacro" line> | ||
json.count(array, value, start)] | |||
</source> | </source> | ||
'''Parameters''' | '''Parameters''' | ||
{{param|array|The [[JSON Array]] to search.}} | |||
{{param|value|The value to count the occurrences of.}} | |||
{{param|start|The index to start searching from, if not specified it defaults to {{code|0}}.}} | |||
|example= | |example= | ||
Find the number of occurrences of {{code|1}}: | |||
<source lang="mtmacro" line> | <source lang="mtmacro" line> | ||
[r: json.count("[1,2,3,1,1,3]", 1)] | [r: json.count("[1,2,3,1,1,3]", 1)] | ||
</source> | |||
Returns {{code|3}} | |||
Find the number of occurrences of {{code|1}}, starting at index {{code|1}}: | |||
<source lang="mtmacro" line> | |||
[r: json.count("[1,2,3,1,1,3]", 1, 1)] | [r: json.count("[1,2,3,1,1,3]", 1, 1)] | ||
</source> | </source> | ||
Returns {{code|2}} | |||
|also= | |||
{{func|json.contains}} | |||
}} | }} | ||
[[Category:JSON Function]] | [[Category:JSON Function]] | ||
Revision as of 19:21, 31 March 2009
json.count() Function
• Introduced in version 1.3b53
Returns the number of occurrences of a value in a JSON Array. If the value does
not occur in the JSON Array then -1 is returned. The index for the JSON Array
0.Usage
json.count(array, value)]json.count(array, value, start)]Parameters
array- The JSON Array to search.value- The value to count the occurrences of.start- The index to start searching from, if not specified it defaults to0.
Example
Find the number of occurrences of
Returns
1:
[r: json.count("[1,2,3,1,1,3]", 1)]Returns 3
Find the number of occurrences of 1, starting at index 1:
[r: json.count("[1,2,3,1,1,3]", 1, 1)]2