all for filters

Signature

> all {flags} (predicate)

Parameters

• predicate: a closure that must evaluate to a boolean

Input/output types:

Examples

Check if each row's status is the string 'UP'

> [[status]; [UP] [UP]] |all {|el| $el.status==UP }
true

Check that each item is a string

> [foobar2baz] |all {|| ($in|describe) =='string' }
false

Check that all values are equal to twice their index

> [0246] |enumerate|all {|i| $i.item==$i.index*2 }
true

Check that all of the values are even, using a stored closure

>letcond= {|el| ($elmod2) ==0 }; [2468] |all$cond
true