es-toolkit
Version:
A state-of-the-art, high-performance JavaScript utility library with a small bundle size and strong type annotations.
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TypeScript
/**
* Checks if `value` is an Error object.
*
* @param {unknown} value The value to check.
* @returns {value is Error} Returns `true` if `value` is an Error object, `false` otherwise.
*
* @example
* ```typescript
* console.log(isError(new Error())); // true
* console.log(isError('Error')); // false
* console.log(isError({ name: 'Error', message: '' })); // false
* ```
*/
declare function isError(value: unknown): value is Error;
export { isError };