how to call array filter within ractivejs template -

so don't want use data functions (let's want final user interact templates , not hardcode javascript.) if had array n elements how can filter can m elements within ractive template ? right have code >> http://jsfiddle.net/t168vymw/4/ not working correctly.

requirements: cannot use function filter, data: {filtersomething: function(){...} } instead, let user play complex array function convertions template. ractive yet supporting ?

ractive doesn't support involves function keyword inside expressions, there 3 ways this:

• data functions,
• method calls (calling methods of ractive instance inside template),
• filtering data directly in template.

you said want logic in template leaves option #3. example, if wanted display numbers list, this:

{{ #a }}     {{ #!(this % 2) }}         {{ }}     {{/}} {{ /a }} 

however, considered anti-pattern. it's better idea allow user write custom js or provide them prepared functions can use in template.