eclipse2022

<div align="center"> <br> <br> <img src="media/logo.svg" alt="type-fest" height="300"> <br> <br> <b>A collection of essential TypeScript types</b> <br> <br> <br> <br> <hr> <div align="center"> <p> <p> ^{<a href="https://github.com/sponsors/sindresorhus">Sindre Sorhus' open source work is supported by the community</a>} </p> ^{Special thanks to:} <br> <br> <a href="https://standardresume.co/tech"> <img src="https://sindresorhus.com/assets/thanks/standard-resume-logo.svg" width="180"/> </a> <br> <br> <br> <a href="https://workos.com/?utm_campaign=github_repo&utm_medium=referral&utm_content=type-fest&utm_source=github"> <div> <img src="https://sindresorhus.com/assets/thanks/workos-logo-white-bg.svg" width="220" alt="WorkOS"> </div> <b>Your app, enterprise-ready.</b> <div> _{Start selling to enterprise customers with just a few lines of code.} <br> ^{Add Single Sign-On (and more) in minutes instead of months.} </div> </a> <br> <br> <br> <a href="https://www.useanvil.com/?utm_source=sindresorhus#gh-light-mode-only"> <div> <img src="https://sindresorhus.com/assets/thanks/anvil-logo-light.svg" width="200" alt="Anvil"> </div> <br> <b>Paperwork that makes the data work.</b> <div> _{Easy APIs for paperwork. PDF generation, e-signature and embeddable no-code webforms. <br> The easiest way to build paperwork automation into your product.} </div> </a> <a href="https://www.useanvil.com/?utm_source=sindresorhus#gh-dark-mode-only"> <div> <img src="https://sindresorhus.com/assets/thanks/anvil-logo-dark.svg" width="200" alt="Anvil"> </div> <br> <b>Paperwork that makes the data work.</b> <div> _{Easy APIs for paperwork. PDF generation, e-signature and embeddable no-code webforms. <br> The easiest way to build paperwork automation into your product.} </div> </a> </p> </div> <br> <hr> </div> <br> <br> [](https://giphy.com/gifs/illustration-rainbow-unicorn-26AHG5KGFxSkUWw1i) [](https://www.npmjs.com/package/type-fest?activeTab=dependents) [](https://www.npmjs.com/package/type-fest) [](https://paka.dev/npm/type-fest) Many of the types here should have been built-in. You can help by suggesting some of them to the [TypeScript project](https://github.com/Microsoft/TypeScript/blob/main/CONTRIBUTING.md). Either add this package as a dependency or copy-paste the needed types. No credit required. ���� PR welcome for additional commonly needed types and docs improvements. Read the [contributing guidelines](.github/contributing.md) first. **Help wanted with reviewing [proposals](https://github.com/sindresorhus/type-fest/issues) and [pull requests](https://github.com/sindresorhus/type-fest/pulls).** ## Install ```sh npm install type-fest ``` *Requires TypeScript >=4.2* ## Usage ```ts import type {Except} from 'type-fest'; type Foo = { unicorn: string; rainbow: boolean; }; type FooWithoutRainbow = Except<Foo, 'rainbow'>; //=> {unicorn: string} ``` ## API Click the type names for complete docs. ### Basic - [`Primitive`](source/primitive.d.ts) - Matches any [primitive value](https://developer.mozilla.org/en-US/docs/Glossary/Primitive). - [`Class`](source/basic.d.ts) - Matches a [`class`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes). - [`Constructor`](source/basic.d.ts) - Matches a [`class` constructor](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes). - [`TypedArray`](source/typed-array.d.ts) - Matches any [typed array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray), like `Uint8Array` or `Float64Array`. - [`ObservableLike`](source/observable-like.d.ts) - Matches a value that is like an [Observable](https://github.com/tc39/proposal-observable). ### Utilities - [`Except`](source/except.d.ts) - Create a type from an object type without certain keys. This is a stricter version of [`Omit`](https://www.typescriptlang.org/docs/handbook/utility-types.html#omittype-keys). - [`Writable`](source/writable.d.ts) - Create a type that strips `readonly` from all or some of an object's keys. The inverse of `Readonly<T>`. Formerly named `Mutable`. - [`Merge`](source/merge.d.ts) - Merge two types into a new type. Keys of the second type overrides keys of the first type. - [`MergeExclusive`](source/merge-exclusive.d.ts) - Create a type that has mutually exclusive keys. - [`RequireAtLeastOne`](source/require-at-least-one.d.ts) - Create a type that requires at least one of the given keys. - [`RequireExactlyOne`](source/require-exactly-one.d.ts) - Create a type that requires exactly a single key of the given keys and disallows more. - [`RequireAllOrNone`](source/require-all-or-none.d.ts) - Create a type that requires all of the given keys or none of the given keys. - [`RemoveIndexSignature`](source/remove-index-signature.d.ts) - Create a type that only has explicitly defined properties, absent of any index signatures. - [`PartialDeep`](source/partial-deep.d.ts) - Create a deeply optional version of another type. Use [`Partial<T>`](https://www.typescriptlang.org/docs/handbook/utility-types.html#partialtype) if you only need one level deep. - [`PartialOnUndefinedDeep`](source/partial-on-undefined-deep.d.ts) - Create a deep version of another type where all keys accepting `undefined` type are set to optional. - [`ReadonlyDeep`](source/readonly-deep.d.ts) - Create a deeply immutable version of an `object`/`Map`/`Set`/`Array` type. Use [`Readonly<T>`](https://www.typescriptlang.org/docs/handbook/utility-types.html#readonlytype) if you only need one level deep. - [`LiteralUnion`](source/literal-union.d.ts) - Create a union type by combining primitive types and literal types without sacrificing auto-completion in IDEs for the literal type part of the union. Workaround for [Microsoft/TypeScript#29729](https://github.com/Microsoft/TypeScript/issues/29729). - [`Opaque`](source/opaque.d.ts) - Create an [opaque type](https://codemix.com/opaque-types-in-javascript/). - [`UnwrapOpaque`](source/opaque.d.ts) - Revert an [opaque type](https://codemix.com/opaque-types-in-javascript/) back to its original type. - [`InvariantOf`](source/invariant-of.d.ts) - Create an [invariant type](https://basarat.gitbook.io/typescript/type-system/type-compatibility#footnote-invariance), which is a type that does not accept supertypes and subtypes. - [`SetOptional`](source/set-optional.d.ts) - Create a type that makes the given keys optional. - [`SetRequired`](source/set-required.d.ts) - Create a type that makes the given keys required. - [`SetNonNullable`](source/set-non-nullable.d.ts) - Create a type that makes the given keys non-nullable. - [`ValueOf`](source/value-of.d.ts) - Create a union of the given object's values, and optionally specify which keys to get the values from. - [`ConditionalKeys`](source/conditional-keys.d.ts) - Extract keys from a shape where values extend the given `Condition` type. - [`ConditionalPick`](source/conditional-pick.d.ts) - Like `Pick` except it selects properties from a shape where the values extend the given `Condition` type. - [`ConditionalExcept`](source/conditional-except.d.ts) - Like `Omit` except it removes properties from a shape where the values extend the given `Condition` type. - [`UnionToIntersection`](source/union-to-intersection.d.ts) - Convert a union type to an intersection type. - [`LiteralToPrimitive`](source/literal-to-primitive.d.ts) - Convert a [literal type](https://www.typescriptlang.org/docs/handbook/2/everyday-types.html#literal-types) to the [primitive type