stack

Functions class

Utility Functions

Signature:

export declare class Functions 

Method	Modifiers	Description
constant(value)	`static`	Creates a function that returns `value` regardless of its input
identity(value)	`static`	A function that returns `value`
isFalsy(value)	`static`	Returns `true` if the value is falsy
isNil(value)	`static`	Returns `true` if the value is `null` or `undefined`
isTrue(value)	`static`	Returns `true` if the value is truthy
negate(func)	`static`	Creates a function that negates the result of the predicate `func`. The `func` predicate is invoked with the `this` binding and arguments of the created function.
noop(_args)	`static`	A no operation function
stubFalse(_args)	`static`	Returns `false`
stubNull(_args)	`static`	Returns `null`
stubTrue(_args)	`static`	Returns `true`