January 9th, 2023 × #TypeScript#JavaScript#Web Development
TypeScript Fundamentals × Satisfies and as const
Scott and Wes discuss new TypeScript techniques like 'as const' to create frozen read-only types from data and 'satisfies' to allow better inference for unknown metadata objects.
Wes Bos Host
Scott Tolinski Host
In this Hasty Treat, Scott and Wes talk about Satisfies and as const.
Show Notes
- 00:25 Welcome
- 02:04 Xmas recap
- Peloton
- 04:09 Satisfies and as const
- 06:16 What is const?
- 10:30 Helping with currency
- 12:44 Bos monster server update
- 14:13 Satisfies
export const currencies = {
USD: 'US Dollars',
CAD: 'Canadian Dollar',
EUR: 'Euro',
} as const;
export type Currency = typeof currencies;
export type CurrencyCode = keyof Currency;
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