# (a -> Text) -> [a] -> Text

This function may be used as a value for Data.Foldable.foldMap in a Foldable instance.
map f xs is the list obtained by applying f to each element of xs, i.e., > map f [x1, x2, ..., xn] == [f x1, f x2, ..., f xn] > map f [x1, x2, ...] == [f x1, f x2, ...]
Application operator. This operator is redundant, since ordinary application (f x) means the same as (f \$ x). However, \$ has low, right-associative binding precedence, so it sometimes allows parentheses to be omitted; for example: > f \$ g \$ h x = f (g (h x)) It is also useful in higher-order situations, such as map (\$ 0) xs, or Data.List.zipWith (\$) fs xs.
Strict (call-by-value) application, defined in terms of seq.
Apply a transformation everywhere in bottom-up manner
Apply a transformation everywhere in top-down manner
The sortWith function sorts a list of elements using the user supplied function to project something out of each element
A combination of parList and map, encapsulating a common pattern: > parMap strat f = withStrategy (parList strat) . map f
Lift a function to actions. This function may be used as a value for fmap in a Functor instance.
This function may be used as a value for fmap in a Functor instance.
until p f yields the result of applying f until p holds.
Sequential function application. The argument is evaluated using the given strategy before it is given to the function.
Parallel function application. The argument is evaluated using the given strategy, in parallel with the function application.
the deep analogue of \$!. In the expression f \$!! x, x is fully evaluated before the function f is applied to it.
iterate f x returns an infinite list of repeated applications of f to x: > iterate f x == [x, f x, f (f x), ...]
Function composition.
Extend a generic query by a type-specific case
Type extension of queries for type constructors
Type extension of queries for type constructors