How to convert a string to a number in TypeScript (and JavaScript)?

Hello everyone! I just started learning TypeScript, and I have a problem with converting strings to numbers. In regular JavaScript, I used `parseInt()` or `Number()`, but in TypeScript, everything works a bit differently due to strict typing. Here's an example of my code: ```javascript const userInput: string = "42"; const age: number = parseInt(userInput); // error! ``` TypeScript throws an error that `parseInt` returns `number`, but I want to assign this value to a variable with type `number`. Although it seems logical... I also tried this: ```javascript const price: string = "19.99"; const total: number = Number(price); ``` But TypeScript complains that `Number` can return `NaN`, and `NaN` has type `number`, but it's not really a number. I'm confused. Tell me, how to properly