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Lukas Tetzlaff 2018-10-31 16:45:43 +01:00
parent f7a8ee269b
commit e90fec0f62
2 changed files with 19 additions and 19 deletions
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30
source/index.ts
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@ -11,7 +11,7 @@ export interface ArrayLike {
length: number;
}
export interface Class<T = any> {
export interface Class<T = unknown> {
new(...args: any[]): T;
}
@ -57,7 +57,7 @@ export const enum TypeName {
const toString = Object.prototype.toString;
const isOfType = <T>(type: string) => (value: unknown): value is T => typeof value === type;
const isBuffer = (input: any): input is Buffer => !is.nullOrUndefined(input) && !is.nullOrUndefined(input.constructor) && is.function_(input.constructor.isBuffer) && input.constructor.isBuffer(input);
const isBuffer = (input: unknown): input is Buffer => !is.nullOrUndefined(input) && !is.nullOrUndefined((input as Buffer).constructor) && is.function_((input as Buffer).constructor.isBuffer) && (input as Buffer).constructor.isBuffer(input);
const getObjectType = (value: unknown): TypeName | null => {
const objectName = toString.call(value).slice(8, -1) as string;
@ -145,18 +145,18 @@ namespace is { // tslint:disable-line:no-namespace
export const nullOrUndefined = (value: unknown): value is null | undefined => null_(value) || undefined(value);
export const object = (value: unknown): value is object => !nullOrUndefined(value) && (function_(value) || isObject(value));
export const iterable = (value: any): value is IterableIterator<unknown> => !nullOrUndefined(value) && function_(value[Symbol.iterator]);
export const asyncIterable = (value: any): value is AsyncIterableIterator<unknown> => !nullOrUndefined(value) && function_(value[Symbol.asyncIterator]);
export const iterable = (value: unknown): value is IterableIterator<unknown> => !nullOrUndefined(value) && function_((value as IterableIterator<unknown>)[Symbol.iterator]);
export const asyncIterable = (value: unknown): value is AsyncIterableIterator<unknown> => !nullOrUndefined(value) && function_((value as AsyncIterableIterator<unknown>)[Symbol.asyncIterator]);
export const generator = (value: unknown): value is Generator => iterable(value) && function_(value.next) && function_(value.throw);
export const nativePromise = (value: unknown): value is Promise<unknown> =>
isObjectOfType<Promise<unknown>>(TypeName.Promise)(value);
const hasPromiseAPI = (value: any): value is Promise<unknown> =>
const hasPromiseAPI = (value: unknown): value is Promise<unknown> =>
!null_(value) &&
isObject(value) as unknown &&
function_(value.then) &&
function_(value.catch);
function_((value as Promise<unknown>).then) &&
function_((value as Promise<unknown>).catch);
export const promise = (value: unknown): value is Promise<unknown> => nativePromise(value) || hasPromiseAPI(value);
@ -192,7 +192,7 @@ namespace is { // tslint:disable-line:no-namespace
export const truthy = (value: unknown) => Boolean(value);
export const falsy = (value: unknown) => !value;
export const nan = (value: any) => Number.isNaN(value);
export const nan = (value: unknown) => Number.isNaN(value as number);
const primitiveTypes = new Set([
'undefined',
@ -204,8 +204,8 @@ namespace is { // tslint:disable-line:no-namespace
export const primitive = (value: unknown): value is Primitive => null_(value) || primitiveTypes.has(typeof value);
export const integer = (value: any): value is number => Number.isInteger(value);
export const safeInteger = (value: any): value is number => Number.isSafeInteger(value);
export const integer = (value: unknown): value is number => Number.isInteger(value as number);
export const safeInteger = (value: unknown): value is number => Number.isSafeInteger(value as number);
export const plainObject = (value: unknown) => {
// From: https://github.com/sindresorhus/is-plain-obj/blob/master/index.js
@ -238,7 +238,7 @@ namespace is { // tslint:disable-line:no-namespace
};
const isValidLength = (value: unknown) => safeInteger(value) && value > -1;
export const arrayLike = (value: any): value is ArrayLike => !nullOrUndefined(value) && !function_(value) && isValidLength(value.length);
export const arrayLike = (value: unknown): value is ArrayLike => !nullOrUndefined(value) && !function_(value) && isValidLength((value as ArrayLike).length);
export const inRange = (value: number, range: number | number[]) => {
if (number(range)) {
@ -261,11 +261,11 @@ namespace is { // tslint:disable-line:no-namespace
'nodeValue'
];
export const domElement = (value: any): value is DomElement => object(value) as unknown && value.nodeType === NODE_TYPE_ELEMENT && string(value.nodeName) &&
!plainObject(value) && DOM_PROPERTIES_TO_CHECK.every(property => property in value);
export const domElement = (value: unknown): value is DomElement => object(value) && (value as DomElement).nodeType === NODE_TYPE_ELEMENT && string((value as DomElement).nodeName) &&
!plainObject(value) && DOM_PROPERTIES_TO_CHECK.every(property => property in (value as DomElement));
export const observable = (value: any) => Boolean(value && value[symbolObservable] && value === value[symbolObservable]());
export const nodeStream = (value: any): value is NodeStream => !nullOrUndefined(value) && isObject(value) as unknown && function_(value.pipe) && !observable(value);
export const observable = (value: unknown) => Boolean(value && (value as any)[symbolObservable] && value === (value as any)[symbolObservable]());
export const nodeStream = (value: unknown): value is NodeStream => !nullOrUndefined(value) && isObject(value) as unknown && function_((value as NodeStream).pipe) && !observable(value);
export const infinite = (value: unknown) => value === Infinity || value === -Infinity;