entries

Problem

You need typed key-value pairs from an object without losing the key type that Object.entries widens to string.

Solution

Use entries(obj) to get [keyof T, T[keyof T]][] pairs with preserved key types.

import { entries } from '@vielzeug/arsenal';

const config = { host: 'localhost', port: 3000 } as const;
for (const [key, value] of entries(config)) {
  console.log(key, value); // key is 'host' | 'port', not string
}

Pitfalls

• Only returns own enumerable properties — same as Object.entries.

Related

• keys
• values
• fromEntries