always

Create a function that always returns the same value

Usage

Creates a function that always returns the same value, regardless of any arguments passed to it.

import * as 
import _
_ from 'radashi'

const 
const alwaysTrue: () => boolean
alwaysTrue = 
import _
_.
always<boolean>(value: boolean): () => boolean
export always
Create a function that always returns the same value.
@example 
const alwaysTrue = always(true)
alwaysTrue() // true
alwaysTrue() // true
alwaysTrue() // true
@version ― 12.2.0
always(true)

const alwaysTrue: () => boolean
alwaysTrue() // true
const alwaysTrue: () => boolean
alwaysTrue(1, 2, 3) // true

Use cases

You can avoid using always if the value is a primitive (use () => true instead), but it can be useful if you need a function that always returns the same object reference, or if you want to memoize a calculation across multiple calls.


// Not memoized
() => 
any
someCalculation()
// Memoized
import _
_.
always<any>(value: any): () => any
export always
Create a function that always returns the same value.
@example 
const alwaysTrue = always(true)
alwaysTrue() // true
alwaysTrue() // true
alwaysTrue() // true
@version ― 12.2.0
always(
any
someCalculation())

// Not same object
() => ({ 
a: number
a: 1, 
b: number
b: 2 })
// Same object
import _
_.
always<{
    a: number;
    b: number;
}>(value: {
    a: number;
    b: number;
}): () => {
    a: number;
    b: number;
}
export always
Create a function that always returns the same value.
@example 
const alwaysTrue = always(true)
alwaysTrue() // true
alwaysTrue() // true
alwaysTrue() // true
@version ― 12.2.0
always({ 
a: number
a: 1, 
b: number
b: 2 })