klz-cables.com/.pnpm-store/v10/files/33/49c9f637e1f6598e77ef0a74432091c2c215e20c7f8c7b62ba3684b04efb5b0dcce0dcdf3502590b7d665534549f01019db0ecf37305221372c4c88c62b7e6

# @emotion/weak-memoize

> A memoization function that uses a WeakMap

## Install

```bash
yarn 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.

```jsx
import weakMemoize from '@emotion/weak-memoize'

let doThing = weakMemoize(({ someProperty }) => {
  return { newName: someProperty }
})

let obj = { someProperty: true }

let firstResult = doThing(obj)

let secondResult = doThing(obj)

firstResult === secondResult // true

let newObj = { someProperty: true }

let thirdResult = doThing(newObj)

thirdResult === firstResult // false
```