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Update TypeScript

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This commit is contained in:
Sindre Sorhus 2020-02-22 02:01:58 +07:00
parent 1ff389cabb
commit 05cdaccf92
4 changed files with 33 additions and 26 deletions
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19
source/index.ts
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@ -133,13 +133,13 @@ is.numericString = (value: unknown): value is string =>
is.string(value) && value.length > 0 && !Number.isNaN(Number(value));
is.array = Array.isArray;
is.buffer = (value: unknown): value is Buffer => !is.nullOrUndefined(value) && !is.nullOrUndefined((value as Buffer).constructor) && is.function_((value as Buffer).constructor.isBuffer) && (value as Buffer).constructor.isBuffer(value);
is.buffer = (value: unknown): value is Buffer => (value as any)?.constructor?.isBuffer?.(value) ?? false;
is.nullOrUndefined = (value: unknown): value is null | undefined => is.null_(value) || is.undefined(value);
is.object = (value: unknown): value is object => !is.null_(value) && (typeof value === 'object' || is.function_(value));
is.iterable = <T = unknown>(value: unknown): value is IterableIterator<T> => !is.nullOrUndefined(value) && is.function_((value as IterableIterator<T>)[Symbol.iterator]);
is.iterable = <T = unknown>(value: unknown): value is IterableIterator<T> => is.function_((value as IterableIterator<T>)?.[Symbol.iterator]);
is.asyncIterable = <T = unknown>(value: unknown): value is AsyncIterableIterator<T> => !is.nullOrUndefined(value) && is.function_((value as AsyncIterableIterator<T>)[Symbol.asyncIterator]);
is.asyncIterable = <T = unknown>(value: unknown): value is AsyncIterableIterator<T> => is.function_((value as AsyncIterableIterator<T>)?.[Symbol.asyncIterator]);
is.generator = (value: unknown): value is Generator => is.iterable(value) && is.function_(value.next) && is.function_(value.throw);
@ -149,9 +149,8 @@ is.nativePromise = <T = unknown>(value: unknown): value is Promise<T> =>
isObjectOfType<Promise<T>>(TypeName.Promise)(value);
const hasPromiseAPI = <T = unknown>(value: unknown): value is Promise<T> =>
is.object(value) &&
is.function_((value as Promise<T>).then) && // eslint-disable-line promise/prefer-await-to-then
is.function_((value as Promise<T>).catch);
is.function_((value as Promise<T>)?.then) &&
is.function_((value as Promise<T>)?.catch);
is.promise = <T = unknown>(value: unknown): value is Promise<T> => is.nativePromise(value) || hasPromiseAPI(value);
@ -326,11 +325,11 @@ is.observable = (value: unknown): value is ObservableLike => {
}
// eslint-disable-next-line no-use-extend-native/no-use-extend-native
if ((value as any)[Symbol.observable] && value === (value as any)[Symbol.observable]()) {
if (value === (value as any)[Symbol.observable]?.()) {
return true;
}
if ((value as any)['@@observable'] && value === (value as any)['@@observable']()) {
if (value === (value as any)['@@observable']?.()) {
return true;
}
@ -357,7 +356,7 @@ is.emptyString = (value: unknown): value is '' => is.string(value) && value.leng
// TODO: Use `not ''` when the `not` operator is available.
is.nonEmptyString = (value: unknown): value is string => is.string(value) && value.length > 0;
const isWhiteSpaceString = (value: unknown): value is string => is.string(value) && /\S/.test(value) === false;
const isWhiteSpaceString = (value: unknown): value is string => is.string(value) && !/\S/.test(value);
is.emptyStringOrWhitespace = (value: unknown): value is string => is.emptyString(value) || isWhiteSpaceString(value);
is.emptyObject = <Key extends keyof any = string>(value: unknown): value is Record<Key, never> => is.object(value) && !is.map(value) && !is.set(value) && Object.keys(value).length === 0;
@ -377,7 +376,7 @@ export type Predicate = (value: unknown) => boolean;
type ArrayMethod = (fn: (value: unknown, index: number, array: unknown[]) => boolean, thisArg?: unknown) => boolean;
const predicateOnArray = (method: ArrayMethod, predicate: Predicate, values: unknown[]) => {
if (is.function_(predicate) === false) {
if (!is.function_(predicate)) {
throw new TypeError(`Invalid predicate: ${JSON.stringify(predicate)}`);
}