I have two Handlebars helpers which I use.
First is timeboundset
which takes an array and a datefield and only selects and applies those elements which fall after that datefield.
Second is sortedset
which sorts the array first and then uses its elements.
Is there a way I can use both the helpers on the array in html itself and not doing any workaround in Javascript?
There are no plans to support that functionality.
https://github.com/wycats/handlebars.js/issues/304
Although, there's an implementation you could try out if you really want it.