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feat: add @discordjs/util (#8591)

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* feat: add @discordjs/util

* fix: builders test

* refactor: make rest use lazy for ESM import

* chore: make requested changes

* Apply suggestions from code review

Co-authored-by: Parbez <imranbarbhuiya.fsd@gmail.com>
Co-authored-by: A. Román <kyradiscord@gmail.com>

* chore: make requested changes and add tests

* chore: regen lockfile

* test: add type tests

* chore: push missing files

* chore: make requested changes

* chore: update CI stuff

* chore: fix lockfile

* chore: make requested changes

Co-authored-by: Parbez <imranbarbhuiya.fsd@gmail.com>
Co-authored-by: A. Román <kyradiscord@gmail.com>
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>
This commit is contained in:
Suneet Tipirneni
2022-10-02 14:00:31 -04:00
committed by GitHub
parent 3f8656115b
commit b2ec865765
56 changed files with 1311 additions and 1326 deletions
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18
packages/util/src/functions/lazy.ts Normal file
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@@ -0,0 +1,18 @@
/**
* Lazy is a wrapper around a value that is computed lazily. It is useful for
* cases where the value is expensive to compute and the computation may not
* be needed at all.
*
* @param cb - The callback to lazily evaluate
* @typeParam T - The type of the value
* @example
* ```ts
* const value = lazy(() => computeExpensiveValue());
* ```
*/
// eslint-disable-next-line promise/prefer-await-to-callbacks
export function lazy<T>(cb: () => T): () => T {
let defaultValue: T;
// eslint-disable-next-line promise/prefer-await-to-callbacks
return () => (defaultValue ??= cb());
}