Check Promise

isPromise

Determines if a value is a Promise (thenable object). Works with native Promises and most Promise implementations.

Import

import { isPromise } from 'toolbox-x/guards';

Signature

function isPromise<T>(value: unknown): value is Promise<T>

Examples

Notes

• Detects both native Promises and thenables
• Works across different Promise implementations
• Useful for promise unwrapping utilities