Chapter 12
The Built-In Functions
Function Application
apply
[Function]
Applies a function to arguments.
- Signature:
-
apply function argument #rest more-arguments
⇒#rest values
- Arguments:
-
- function
-
An instance of
<function>
. - argument
-
An instance of
<object>
or, if there are no more-arguments, an instance of<sequence>
. - more-arguments
-
Instances of
<object>
. The last more-arguments must be an instance of<sequence>
.
- Values:
-
- values
-
Instances of
<object>
.
- Description:
-
Calls function and returns the values that function returns. The argument and more-arguments supply the arguments to function. All but the last of argument and more-arguments are passed to function individually. The last of argument and more-arguments must be a sequence. This sequence is not passed as a single argument to function. Instead, its elements are taken individually as arguments to function.
apply(max, list(3, 1, 4, 1, 5, 9)) ⇒ 9 apply(min, 5, 7, list(3, 1, 4)) ⇒ 1 define constant make-string = method (#rest init-args) => string :: <string>; apply(make, <string>, init-args) end; make-string(fill: 'a', size: 10) ⇒ "aaaaaaaaaa"
Errata: In the published book, commas are missing:
apply(min 5, 7 list(3, 1, 4))