Kernel.apply
You're seeing just the function
apply
, go back to Kernel module for more information.
Specs
Invokes the given anonymous function fun
with the list of
arguments args
.
If the number of arguments is known at compile time, prefer
fun.(arg_1, arg_2, ..., arg_n)
as it is clearer than
apply(fun, [arg_1, arg_2, ..., arg_n])
.
Inlined by the compiler.
Examples
iex> apply(fn x -> x * 2 end, [2])
4
Specs
Invokes the given function from module
with the list of
arguments args
.
apply/3
is used to invoke functions where the module, function
name or arguments are defined dynamically at runtime. For this
reason, you can't invoke macros using apply/3
, only functions.
If the number of arguments and the function name are known at compile time,
prefer module.function(arg_1, arg_2, ..., arg_n)
as it is clearer than
apply(module, :function, [arg_1, arg_2, ..., arg_n])
.
Inlined by the compiler.
Examples
iex> apply(Enum, :reverse, [[1, 2, 3]])
[3, 2, 1]