From Homestar Runner Wiki
{{#count:id|increment}}
| Increments the counter id by increment and displays the result; increment can be omitted, and defaults to 1.
|
{{#resetcount:id|value|increment}}
| Silently sets the counter id to value minus increment (so that the next count by increment will display value); value and increment can be omitted, and both default to 1.
|
{{hcount}}
{{vcount}}
| Used in sortable tables. See below.
|
[edit] Examples
count is a parser function that returns an integer that increments each time the function is called:
| Code | Gives
|
{{#count:basic}} | 1
|
{{#count:basic}} | 2
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{{#count:basic}} | 3
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{{#count:basic}} | 4
|
{{#count:basic}} | 5
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The counters can be given different names, so you can have more than one of them on the same page:
(The actual name doesn't matter, so long as they're different. If you use a counter in a template, pick a name that'll be unique.)
| Code | Gives
|
{{#count:first}} | 1
|
{{#count:second}} | 1
|
{{#count:second}} | 2
|
{{#count:second}} | 3
|
{{#count:first}} | 2
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{{#count:second}} | 4
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You can also make the counter count by twos, or by any other number:
| Code | Gives
|
{{#count:evens|2}} | 2
|
{{#count:evens|2}} | 4
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{{#count:evens|2}} | 6
|
{{#count:evens|2}} | 8
|
{{#count:evens|2}} | 10
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Different increments can be used at different times, depending on what is needed:
| Code | Gives
|
{{#count:strange|1}} | 1
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{{#count:strange|1}} | 2
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{{#count:strange|3}} | 5
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{{#count:strange|0}} | 5
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{{#count:strange|-1}} | 4
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{{#count:strange|2}} | 6
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The counter can be reset partway through a page:
| Code | Gives
|
{{#count:basic}} | 1
|
{{#count:basic}} | 2
|
{{#count:basic}} | 3
|
{{#resetcount:basic}} |
|
{{#count:basic}} | 1
|
{{#count:basic}} | 2
|
{{#count:basic}} | 3
|
You can also set what number you want to start on:
| Code | Gives
|
{{#resetcount:starting|11}} |
|
{{#count:starting}} | 11
|
{{#count:starting}} | 12
|
{{#count:starting}} | 13
|
{{#count:starting}} | 14
|
{{#count:starting}} | 15
|
If you're using an increment, you need to give it to #resetcount too:
| Code | Gives
|
{{#resetcount:starting evens|14|2}} |
|
{{#count:starting evens|2}} | 14
|
{{#count:starting evens|2}} | 16
|
{{#count:starting evens|2}} | 18
|
{{#count:starting evens|2}} | 20
|
{{#count:starting evens|2}} | 22
|
Use a negative increment to count down. As noted above, be sure to pass the increment to #resetcount too:
| Code | Gives
|
{{#resetcount:countdown|3|-1}} |
|
{{#count:countdown|-1}} | 3
|
{{#count:countdown|-1}} | 2
|
{{#count:countdown|-1}} | 1
|
{{#count:countdown|-1}} | 0
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{{#count:countdown|-1}} | -1
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You can use the counter in other parser functions:
| Code | Gives
|
{{#ifexpr:{{#count:alternate}} mod 2 = 0|even|odd}} | odd
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{{#ifexpr:{{#count:alternate}} mod 2 = 0|even|odd}} | even
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{{#ifexpr:{{#count:alternate}} mod 2 = 0|even|odd}} | odd
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{{#ifexpr:{{#count:alternate}} mod 2 = 0|even|odd}} | even
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{{#ifexpr:{{#count:alternate}} mod 2 = 0|even|odd}} | odd
|
| Code | Gives
|
{{#expr:{{#count:squares}} * {{#count:squares|0}}}} | 1
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{{#expr:{{#count:squares}} * {{#count:squares|0}}}} | 4
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{{#expr:{{#count:squares}} * {{#count:squares|0}}}} | 9
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{{#expr:{{#count:squares}} * {{#count:squares|0}}}} | 16
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{{#expr:{{#count:squares}} * {{#count:squares|0}}}} | 25
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[edit] Sortable Tables
When using count in sortable tables, please use the {{hcount}} and {{vcount}} templates. Be sure to carefully read their documentation in order to sort table entries correctly.
