List comprehensions: Difference between revisions
m
J: provide example use (or should this code get a name?)
No edit summary |
m (J: provide example use (or should this code get a name?)) |
||
Line 183:
Second, you need a statement of the form (#~ B) where B returns true for the desired members, and false for the undesired members.
Example use:
<lang J> (#~ (2&{ = 1&{ +&.:*: 0&{)@|:)@(1+3&# #: i.@^&3) 12
3 4 5
4 3 5
6 8 10
8 6 10</lang>
=={{header|JavaScript}}==
| |||