@emotion/weak-memoize

A memoization function that uses a WeakMap

Install

1yarn add @emotion/weak-memoize

Usage

Because @emotion/weak-memoize uses a WeakMap the argument must be a non primitive type, e.g. objects, functions, arrays and etc. The function passed to weakMemoize must also only accept a single argument.

1import weakMemoize from '@zedvision/emotion-weak-memoize'
2
3let doThing = weakMemoize(({ someProperty }) => {
4  return { newName: someProperty }
5})
6
7let obj = { someProperty: true }
8
9let firstResult = doThing(obj)
10
11let secondResult = doThing(obj)
12
13firstResult === secondResult // true
14
15let newObj = { someProperty: true }
16
17let thirdResult = doThing(newObj)
18
19thirdResult === firstResult // false