index.d.ts 8.1 KB

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  1. export declare type AnyFunction = (...args: any[]) => any;
  2. export declare type AnyAsyncFunction = (...args: any[]) => Promise<any>;
  3. export declare type AnyClass = new (...args: any[]) => any;
  4. export declare type PlainObject = Record<string | number | symbol, any>;
  5. declare type TypeGuard<A, B extends A> = (payload: A) => payload is B;
  6. /**
  7. * Returns the object type of the given payload
  8. *
  9. * @param {*} payload
  10. * @returns {string}
  11. */
  12. export declare function getType(payload: any): string;
  13. /**
  14. * Returns whether the payload is undefined
  15. *
  16. * @param {*} payload
  17. * @returns {payload is undefined}
  18. */
  19. export declare function isUndefined(payload: any): payload is undefined;
  20. /**
  21. * Returns whether the payload is null
  22. *
  23. * @param {*} payload
  24. * @returns {payload is null}
  25. */
  26. export declare function isNull(payload: any): payload is null;
  27. /**
  28. * Returns whether the payload is a plain JavaScript object (excluding special classes or objects with other prototypes)
  29. *
  30. * @param {*} payload
  31. * @returns {payload is PlainObject}
  32. */
  33. export declare function isPlainObject(payload: any): payload is PlainObject;
  34. /**
  35. * Returns whether the payload is a plain JavaScript object (excluding special classes or objects with other prototypes)
  36. *
  37. * @param {*} payload
  38. * @returns {payload is PlainObject}
  39. */
  40. export declare function isObject(payload: any): payload is PlainObject;
  41. /**
  42. * Returns whether the payload is a an empty object (excluding special classes or objects with other prototypes)
  43. *
  44. * @param {*} payload
  45. * @returns {payload is { [K in any]: never }}
  46. */
  47. export declare function isEmptyObject(payload: any): payload is {
  48. [K in any]: never;
  49. };
  50. /**
  51. * Returns whether the payload is a an empty object (excluding special classes or objects with other prototypes)
  52. *
  53. * @param {*} payload
  54. * @returns {payload is PlainObject}
  55. */
  56. export declare function isFullObject(payload: any): payload is PlainObject;
  57. /**
  58. * Returns whether the payload is an any kind of object (including special classes or objects with different prototypes)
  59. *
  60. * @param {*} payload
  61. * @returns {payload is PlainObject}
  62. */
  63. export declare function isAnyObject(payload: any): payload is PlainObject;
  64. /**
  65. * Returns whether the payload is an object like a type passed in < >
  66. *
  67. * Usage: isObjectLike<{id: any}>(payload) // will make sure it's an object and has an `id` prop.
  68. *
  69. * @template T this must be passed in < >
  70. * @param {*} payload
  71. * @returns {payload is T}
  72. */
  73. export declare function isObjectLike<T extends PlainObject>(payload: any): payload is T;
  74. /**
  75. * Returns whether the payload is a function (regular or async)
  76. *
  77. * @param {*} payload
  78. * @returns {payload is AnyFunction}
  79. */
  80. export declare function isFunction(payload: any): payload is AnyFunction;
  81. /**
  82. * Returns whether the payload is an array
  83. *
  84. * @param {any} payload
  85. * @returns {payload is any[]}
  86. */
  87. export declare function isArray(payload: any): payload is any[];
  88. /**
  89. * Returns whether the payload is a an array with at least 1 item
  90. *
  91. * @param {*} payload
  92. * @returns {payload is any[]}
  93. */
  94. export declare function isFullArray(payload: any): payload is any[];
  95. /**
  96. * Returns whether the payload is a an empty array
  97. *
  98. * @param {*} payload
  99. * @returns {payload is []}
  100. */
  101. export declare function isEmptyArray(payload: any): payload is [];
  102. /**
  103. * Returns whether the payload is a string
  104. *
  105. * @param {*} payload
  106. * @returns {payload is string}
  107. */
  108. export declare function isString(payload: any): payload is string;
  109. /**
  110. * Returns whether the payload is a string, BUT returns false for ''
  111. *
  112. * @param {*} payload
  113. * @returns {payload is string}
  114. */
  115. export declare function isFullString(payload: any): payload is string;
  116. /**
  117. * Returns whether the payload is ''
  118. *
  119. * @param {*} payload
  120. * @returns {payload is string}
  121. */
  122. export declare function isEmptyString(payload: any): payload is string;
  123. /**
  124. * Returns whether the payload is a number (but not NaN)
  125. *
  126. * This will return `false` for `NaN`!!
  127. *
  128. * @param {*} payload
  129. * @returns {payload is number}
  130. */
  131. export declare function isNumber(payload: any): payload is number;
  132. /**
  133. * Returns whether the payload is a boolean
  134. *
  135. * @param {*} payload
  136. * @returns {payload is boolean}
  137. */
  138. export declare function isBoolean(payload: any): payload is boolean;
  139. /**
  140. * Returns whether the payload is a regular expression (RegExp)
  141. *
  142. * @param {*} payload
  143. * @returns {payload is RegExp}
  144. */
  145. export declare function isRegExp(payload: any): payload is RegExp;
  146. /**
  147. * Returns whether the payload is a Map
  148. *
  149. * @param {*} payload
  150. * @returns {payload is Map<any, any>}
  151. */
  152. export declare function isMap(payload: any): payload is Map<any, any>;
  153. /**
  154. * Returns whether the payload is a WeakMap
  155. *
  156. * @param {*} payload
  157. * @returns {payload is WeakMap<any, any>}
  158. */
  159. export declare function isWeakMap(payload: any): payload is WeakMap<any, any>;
  160. /**
  161. * Returns whether the payload is a Set
  162. *
  163. * @param {*} payload
  164. * @returns {payload is Set<any>}
  165. */
  166. export declare function isSet(payload: any): payload is Set<any>;
  167. /**
  168. * Returns whether the payload is a WeakSet
  169. *
  170. * @param {*} payload
  171. * @returns {payload is WeakSet<any>}
  172. */
  173. export declare function isWeakSet(payload: any): payload is WeakSet<any>;
  174. /**
  175. * Returns whether the payload is a Symbol
  176. *
  177. * @param {*} payload
  178. * @returns {payload is symbol}
  179. */
  180. export declare function isSymbol(payload: any): payload is symbol;
  181. /**
  182. * Returns whether the payload is a Date, and that the date is valid
  183. *
  184. * @param {*} payload
  185. * @returns {payload is Date}
  186. */
  187. export declare function isDate(payload: any): payload is Date;
  188. /**
  189. * Returns whether the payload is a Blob
  190. *
  191. * @param {*} payload
  192. * @returns {payload is Blob}
  193. */
  194. export declare function isBlob(payload: any): payload is Blob;
  195. /**
  196. * Returns whether the payload is a File
  197. *
  198. * @param {*} payload
  199. * @returns {payload is File}
  200. */
  201. export declare function isFile(payload: any): payload is File;
  202. /**
  203. * Returns whether the payload is a Promise
  204. *
  205. * @param {*} payload
  206. * @returns {payload is Promise<any>}
  207. */
  208. export declare function isPromise(payload: any): payload is Promise<any>;
  209. /**
  210. * Returns whether the payload is an Error
  211. *
  212. * @param {*} payload
  213. * @returns {payload is Error}
  214. */
  215. export declare function isError(payload: any): payload is Error;
  216. /**
  217. * Returns whether the payload is literally the value `NaN` (it's `NaN` and also a `number`)
  218. *
  219. * @param {*} payload
  220. * @returns {payload is typeof NaN}
  221. */
  222. export declare function isNaNValue(payload: any): payload is typeof NaN;
  223. /**
  224. * Returns whether the payload is a primitive type (eg. Boolean | Null | Undefined | Number | String | Symbol)
  225. *
  226. * @param {*} payload
  227. * @returns {(payload is boolean | null | undefined | number | string | symbol)}
  228. */
  229. export declare function isPrimitive(payload: any): payload is boolean | null | undefined | number | string | symbol;
  230. /**
  231. * Returns true whether the payload is null or undefined
  232. *
  233. * @param {*} payload
  234. * @returns {(payload is null | undefined)}
  235. */
  236. export declare const isNullOrUndefined: TypeGuard<any, null | undefined>;
  237. export declare function isOneOf<A, B extends A, C extends A>(a: TypeGuard<A, B>, b: TypeGuard<A, C>): TypeGuard<A, B | C>;
  238. export declare function isOneOf<A, B extends A, C extends A, D extends A>(a: TypeGuard<A, B>, b: TypeGuard<A, C>, c: TypeGuard<A, D>): TypeGuard<A, B | C | D>;
  239. export declare function isOneOf<A, B extends A, C extends A, D extends A, E extends A>(a: TypeGuard<A, B>, b: TypeGuard<A, C>, c: TypeGuard<A, D>, d: TypeGuard<A, E>): TypeGuard<A, B | C | D | E>;
  240. export declare function isOneOf<A, B extends A, C extends A, D extends A, E extends A, F extends A>(a: TypeGuard<A, B>, b: TypeGuard<A, C>, c: TypeGuard<A, D>, d: TypeGuard<A, E>, e: TypeGuard<A, F>): TypeGuard<A, B | C | D | E | F>;
  241. /**
  242. * Does a generic check to check that the given payload is of a given type.
  243. * In cases like Number, it will return true for NaN as NaN is a Number (thanks javascript!);
  244. * It will, however, differentiate between object and null
  245. *
  246. * @template T
  247. * @param {*} payload
  248. * @param {T} type
  249. * @throws {TypeError} Will throw type error if type is an invalid type
  250. * @returns {payload is T}
  251. */
  252. export declare function isType<T extends AnyFunction | AnyClass>(payload: any, type: T): payload is T;
  253. export {};