Adding something to the first item in a loop. As an example, below adding the active class to a bootstrap element, useful for tabs, menus, carousels, modals etc.
{{if for.first == true}} active{{end}}Also, from the same artist:
`{{for.index}}` The current index of the for loop
`{{for.rindex}}` The current index of the for loop starting from the end of the list
`{{for.first}}` A boolean indicating whether this is the first step in the loop
`{{for.last}}` A boolean indicating whether this is the last step in the loop
`{{for.even}}` A boolean indicating whether this is an even row in the loop
`{{for.odd}}` A boolean indicating whether this is an odd row in the loop
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