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Add some more types

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This commit is contained in:
Lukas Tetzlaff 2018-04-29 20:40:09 +02:00
parent d749aaea11
commit 2fbc25fcd5
1 changed files with 6 additions and 6 deletions
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12
source/index.ts
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@ -111,7 +111,7 @@ namespace is { // tslint:disable-line:no-namespace
export const string = isOfType<string>('string');
export const number = isOfType<number>('number');
export const function_ = isOfType<Function>('function');
export const null_ = (value: any): value is null => value === null;
export const null_ = (value: null | any): value is null => value === null;
export const class_ = (value: any) => function_(value) && value.toString().startsWith('class ');
export const boolean = (value: boolean): value is boolean => value === true || value === false;
export const symbol = isOfType<Symbol>('symbol');
@ -120,10 +120,10 @@ namespace is { // tslint:disable-line:no-namespace
export const array = Array.isArray;
export const buffer = Buffer.isBuffer;
export const nullOrUndefined = (value: any): value is null | undefined => null_(value) || undefined(value);
export const nullOrUndefined = (value: null | undefined | any): value is null | undefined => null_(value) || undefined(value);
export const object = (value: object) => !nullOrUndefined(value) && (function_(value) || isObject(value));
export const iterable = (value: IterableIterator<any>): value is IterableIterator<any> => !nullOrUndefined(value) && function_(value[Symbol.iterator]);
export const generator = (value: any): value is Generator => iterable(value) && function_(value.next) && function_(value.throw);
export const iterable = <T = any>(value: IterableIterator<T>): value is IterableIterator<T> => !nullOrUndefined(value) && function_(value[Symbol.iterator]);
export const generator = (value: Generator): value is Generator => iterable(value as IterableIterator<any>) && function_(value.next) && function_(value.throw);
export const nativePromise = <T = any>(value: Promise<T>): value is Promise<T> =>
isObjectOfType<Promise<T>>(TypeName.Promise)(value);
@ -236,10 +236,10 @@ namespace is { // tslint:disable-line:no-namespace
'nodeValue'
];
export const domElement = (value: any) => object(value) && value.nodeType === NODE_TYPE_ELEMENT && string(value.nodeName) &&
export const domElement = (value: object & { nodeType: 1; nodeName: string }) => object(value) && value.nodeType === NODE_TYPE_ELEMENT && string(value.nodeName) &&
!plainObject(value) && DOM_PROPERTIES_TO_CHECK.every(property => property in value);
export const nodeStream = (value: object) => !nullOrUndefined(value) && isObject(value) && function_(value.pipe);
export const nodeStream = (value: object & { pipe: Function }) => !nullOrUndefined(value) && isObject(value) && function_(value.pipe);
export const infinite = (value: number) => value === Infinity || value === -Infinity;