withindices

.withindices from:{Iterable<Any>} -> Dictionary<Any>

Associates each element of a collection with its index, starting at 1.

.var {letters}
    - A
    - B

.letters::withindices::foreach
    .1::first .1::second

<!-- 1 A -->
<!-- 2 B -->

a dictionary whose keys are the indices of the elements, starting at 1, and whose values are the elements themselves

from

collection to index

This function is designed to be chained with other function calls:

Iterable<Any>::withindices -> Dictionary<Any>