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[6a3a178] | 1 | /// <reference lib="es2020.bigint"/>
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| 2 |
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| 3 | // TODO: This can just be `export type Primitive = not object` when the `not` keyword is out.
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| 4 | /**
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| 5 | Matches any [primitive value](https://developer.mozilla.org/en-US/docs/Glossary/Primitive).
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| 6 | */
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| 7 | export type Primitive =
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| 8 | | null
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| 9 | | undefined
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| 10 | | string
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| 11 | | number
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| 12 | | boolean
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| 13 | | symbol
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| 14 | | bigint;
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| 15 |
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| 16 | // TODO: Remove the `= unknown` sometime in the future when most users are on TS 3.5 as it's now the default
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| 17 | /**
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| 18 | Matches a [`class` constructor](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes).
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| 19 | */
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| 20 | export type Class<T = unknown, Arguments extends any[] = any[]> = new(...arguments_: Arguments) => T;
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| 21 |
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| 22 | /**
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| 23 | Matches a JSON object.
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| 24 |
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| 25 | This type can be useful to enforce some input to be JSON-compatible or as a super-type to be extended from. Don't use this as a direct return type as the user would have to double-cast it: `jsonObject as unknown as CustomResponse`. Instead, you could extend your CustomResponse type from it to ensure your type only uses JSON-compatible types: `interface CustomResponse extends JsonObject { … }`.
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| 26 | */
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| 27 | export type JsonObject = {[Key in string]?: JsonValue};
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| 28 |
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| 29 | /**
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| 30 | Matches a JSON array.
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| 31 | */
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| 32 | export interface JsonArray extends Array<JsonValue> {}
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| 33 |
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| 34 | /**
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| 35 | Matches any valid JSON value.
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| 36 | */
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| 37 | export type JsonValue = string | number | boolean | null | JsonObject | JsonArray;
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| 38 |
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| 39 | declare global {
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| 40 | interface SymbolConstructor {
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| 41 | readonly observable: symbol;
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| 42 | }
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| 43 | }
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| 44 |
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| 45 | /**
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| 46 | Matches a value that is like an [Observable](https://github.com/tc39/proposal-observable).
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| 47 | */
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| 48 | export interface ObservableLike {
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| 49 | subscribe(observer: (value: unknown) => void): void;
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| 50 | [Symbol.observable](): ObservableLike;
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| 51 | }
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