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Make the NodeStream type more accurate

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Sindre Sorhus 2019-11-13 16:06:18 +07:00
parent c25b606c3b
commit aeb3f74d65
1 changed files with 4 additions and 2 deletions
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6
source/index.ts
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@ -1,5 +1,6 @@
/// <reference lib="es2018"/>
/// <reference lib="dom"/>
/// <reference types="node"/>
export type Class<T = unknown> = new (...args: any[]) => T;
@ -330,8 +331,9 @@ is.observable = (value: unknown): value is ObservableLike => {
return false;
};
// eslint-disable-next-line @typescript-eslint/ban-types
export type NodeStream = object & {readonly pipe: Function};
export interface NodeStream extends NodeJS.EventEmitter {
pipe<T extends NodeJS.WritableStream>(destination: T, options?: {end?: boolean}): T;
}
is.nodeStream = (value: unknown): value is NodeStream => is.object(value) && is.function_((value as NodeStream).pipe) && !is.observable(value);