Namespace: fn

Methods

and(){function}

functions.js, line 150

Composes a predicate function made up of a chain of the given predicate
arguments.

Type	Description
function

asMethod()

functions.js, line 214

Wraps a function and passes `this` as the first argument.

The function that is wrapped is available on the returned method
as the fn property, which allows one to easily switch between
method and function invokation form.

The Function.length property of the given function is examined
and may be either 0, no matter how many arguments the function
expects, or if not 0, must be the actual number of arguments the
function expects.

comp(){*}

functions.js, line 126

Composes the functions given as arguments.

comp(a, b, c)(value) === a(b(c(value)))

Type	Description
function

complement(fn){function}

functions.js, line 68

Generates the complement function for `fn`.
The complement function will return the opposite boolean result when
called with the same arguments as the given `fn` function.

Name	Type	Description
fn	function

constantly()

functions.js, line 187

Returns a function that constantly returns the given value.

extendType(Type, fnByName)

functions.js, line 242

Adds functions to the given type's prototype.

The functions will be converted to methods using Fn.asMethod().

Name	Type	Description
Type	*
fnByName	Object.<string, function()>

identity(arg){*}

functions.js, line 20

Returns its single argument.
Useful for composition when some default behaviour is needed.

Name	Type	Description
arg	*

Returns:

given argument `arg`.

is()

functions.js, line 197

Returns true if the given value is a function.

isNou()

functions.js, line 55

Is null or undefined.

noop()

functions.js, line 28

Does nothing.

or(){function}

functions.js, line 170

Like and() but for boolean OR.

Type	Description
function

partial(fn, thisArg){function}

functions.js, line 94

Like function.prototype.bind except without the `this` argument.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/function/bind

Returns a function that concatenates the given arguments, and the
arguments given to the returned function and calls the given
function with it.

The returned function will have a length of 0, not a length of
fn.length - number of partially applied arguments. This is
important consideration for any code that introspects the arity
of the returned function. Function.prototype.bind() returns a
function with the correct number of arguments but is not
available across all browsers.

Name	Type	Description
fn	function
thisArg	Object

returnFalse(){boolean}

functions.js, line 47

Always returns `false`.

returnTrue(){boolean}

functions.js, line 37

Always returns `true`.

strictEquals(a, b){boolean}

functions.js, line 113

Compare the given arguments using the strict equals operator.

Useful to pass as an arguments to other functions.

Name	Type	Description
a	*
b	*