Like any user input, you do runtime type-checking and validation. TypeScript is especially great for that because it has type narrowing [0]. [0] - https://www.

Like any user input, you do runtime type-checking and validation. TypeScript is especially great for that because it has type narrowing [0]. [0] - https://www.typescriptlang.org/docs/handbook/2/narrowing.html https://www.typescriptlang.org/docs/handbook/2/narrowing.htm...