#prefer-promise-reject-errors

#Configuration

import { defineConfig, ts } from '@rslint/core';

export default defineConfig([
  ts.configs.recommended,
  {
    rules: {
      '@typescript-eslint/prefer-promise-reject-errors': 'error',
    },
  },
]);

#Rule Details

Require using Error objects as Promise rejection reasons. When rejecting a Promise, it is best practice to reject with an Error object, because Error objects store a stack trace, making it much easier to debug by determining where the error came from. This rule reports calls to Promise.reject() and the reject parameter in new Promise((resolve, reject) => ...) when they are called with a non-Error value.

Examples of incorrect code for this rule:

Promise.reject('error');
Promise.reject(0);
new Promise((resolve, reject) => reject('error'));

Examples of correct code for this rule:

Promise.reject(new Error('error'));
new Promise((resolve, reject) => reject(new Error('error')));
Promise.reject(unknownVariable);

#Original Documentation

• typescript-eslint prefer-promise-reject-errors