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Explain foreach's powers a bit more

This commit is contained in:
Nicolas Williams
2014-07-07 17:22:53 -05:00
parent ef9b591215
commit 6458910ba3

@ -1842,7 +1842,10 @@ sections:
for each new state to extract an output of `foreach`.
This is mostly useful only for constructing `reduce`- and
`limit`-like functions.
`limit`-like functions. But it is much more general, as it
allows for partial reductions (see the example below), as well
as breaking out of the "loop" with `empty`, or even `error(x)`
if there's a try/catch around the foreach.
examples:
- program: '[foreach .[] as $item