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Minor refactoring

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Sindre Sorhus 2019-07-01 23:19:25 +07:00
parent e358e44dd5
commit 0cbd9df6ce
1 changed files with 3 additions and 6 deletions
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9
source/index.ts
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@ -113,8 +113,6 @@ function is(value: unknown): TypeName {
return TypeName.Object; return TypeName.Object;
} }
const isObject = (value: unknown): value is object => typeof value === 'object';
is.undefined = isOfType<undefined>('undefined'); is.undefined = isOfType<undefined>('undefined');
is.string = isOfType<string>('string'); is.string = isOfType<string>('string');
@ -138,7 +136,7 @@ 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 => !is.nullOrUndefined(value) && !is.nullOrUndefined((value as Buffer).constructor) && is.function_((value as Buffer).constructor.isBuffer) && (value as Buffer).constructor.isBuffer(value);
is.nullOrUndefined = (value: unknown): value is null | undefined => is.null_(value) || is.undefined(value); is.nullOrUndefined = (value: unknown): value is null | undefined => is.null_(value) || is.undefined(value);
is.object = (value: unknown): value is object => !is.nullOrUndefined(value) && (is.function_(value) || isObject(value)); is.object = (value: unknown): value is object => !is.null_(value) && (typeof value === 'object' || is.function_(value));
is.iterable = (value: unknown): value is IterableIterator<unknown> => !is.nullOrUndefined(value) && is.function_((value as IterableIterator<unknown>)[Symbol.iterator]); is.iterable = (value: unknown): value is IterableIterator<unknown> => !is.nullOrUndefined(value) && is.function_((value as IterableIterator<unknown>)[Symbol.iterator]);
is.asyncIterable = (value: unknown): value is AsyncIterableIterator<unknown> => !is.nullOrUndefined(value) && is.function_((value as AsyncIterableIterator<unknown>)[Symbol.asyncIterator]); is.asyncIterable = (value: unknown): value is AsyncIterableIterator<unknown> => !is.nullOrUndefined(value) && is.function_((value as AsyncIterableIterator<unknown>)[Symbol.asyncIterator]);
@ -149,8 +147,7 @@ is.nativePromise = (value: unknown): value is Promise<unknown> =>
isObjectOfType<Promise<unknown>>(TypeName.Promise)(value); isObjectOfType<Promise<unknown>>(TypeName.Promise)(value);
const hasPromiseAPI = (value: unknown): value is Promise<unknown> => const hasPromiseAPI = (value: unknown): value is Promise<unknown> =>
!is.null_(value) && is.object(value) &&
isObject(value) as unknown &&
is.function_((value as Promise<unknown>).then) && // eslint-disable-line promise/prefer-await-to-then is.function_((value as Promise<unknown>).then) && // eslint-disable-line promise/prefer-await-to-then
is.function_((value as Promise<unknown>).catch); is.function_((value as Promise<unknown>).catch);
@ -322,7 +319,7 @@ is.observable = (value: unknown): value is ObservableLike => {
// eslint-disable-next-line @typescript-eslint/ban-types // eslint-disable-next-line @typescript-eslint/ban-types
export type NodeStream = object & {readonly pipe: Function}; export type NodeStream = object & {readonly pipe: Function};
is.nodeStream = (value: unknown): value is NodeStream => !is.nullOrUndefined(value) && isObject(value) as unknown && is.function_((value as NodeStream).pipe) && !is.observable(value); is.nodeStream = (value: unknown): value is NodeStream => is.object(value) && is.function_((value as NodeStream).pipe) && !is.observable(value);
is.infinite = (value: unknown): value is number => value === Infinity || value === -Infinity; is.infinite = (value: unknown): value is number => value === Infinity || value === -Infinity;