memoize-with

v0.9.6

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Passing

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VISIBILITY

Public

PUBLISHED

5 years ago

SIZE

973 B

Creates a new function that, when invoked, caches the result of calling `fn` for a given argument set and returns the result.

Utils

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memoizeWith (

fn:Function,

fn:Function

) : Function

Creates a new function that, when invoked, caches the result of calling fn for a given argument set and returns the result. Subsequent calls to the memoized fn with the same argument set will not result in an additional call to fn; instead, the cached result for that set of arguments will be returned.

Example

let count = 0;
     const factorial = R.memoizeWith(R.identity, n => {
       count += 1;
       return R.product(R.range(1, n + 1));
     });
     factorial(5); //=> 120
     factorial(5); //=> 120
     factorial(5); //=> 120
     count; //=> 1

Arguments

fn: Function

The function to generate the cache key.

fn: Function

The function to memoize.

Returns

Function

Memoized version of `fn`.