memoize

function

Creates a function that memoizes the result of func. If resolver is provided, it determines the cache key for storing the result based on the arguments provided to the memoized function.

Signature

memoize<T extends (...args: any[]) => any>(func: T, resolver?: (...args: Parameters<T>) => any): T & { cache: Map<any, any> }

Parameters

Name	Type	Description
`func`	`T`	The function to have its output memoized
`resolver?`	`(...args: Parameters<T>) => any`	The function to resolve the cache key

Returns

T & { cache: Map<any, any> } - Returns the new memoized function

Examples

Fibonacci

import { memoize } from 'dashlite'

const fibonacci = memoize((n: number): number => {
  if (n <= 1) return n
  return fibonacci(n - 1) + fibonacci(n - 2)
})

fibonacci(10) // Computed
fibonacci(10) // Cached

With Resolver

import { memoize } from 'dashlite'

const sum = memoize(
  (a: number, b: number) => a + b,
  (a, b) => `${a}-${b}`
)

sum(1, 2) // Computed
sum(1, 2) // Cached

Available since version 1.0.0

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