User:Ericb/Sandbox

Next project(s):

• is it possible to add optional subgroup to Template:Mouse?
• what else needs doing?

It looks like this wiki lacks Extension:ParserFunctions, which means no {{#if:test|if text|if empty}}. But I think I can work around it with my own template, using double template nesting. To test that...

What happens if I use a template:

• with no argument:
• with no named argument:
• with named argument empty:
• with named argument first: hello
• with named argument second: hello
• with named argument twice: second
• with different named arg:
• with two names:
• with indirection: hello

Putting those pieces together:

• no args:
• 1 empty arg:
• 1 non-empty arg:
• 2 args, first empty:
• 2 args, first text: true
• 3 args, first empty: false
• 3 args, first text: true