JavaScript won't let you ... from the cust variable and its creditLimit property set from the cv variable. However, that's a lot of work just to set a single property. Fortunately, the object spread ...

IndexedDB allows you to store data on the client to let ... is valid TypeScript code. However, if you're going to switch to TypeScript, you should take advantage of TypeScript's datatyping support. To ...

The following is an example of strict type declaration in TypeScript, which declares the variable firstName as a variable of type string: let firstName ... named firstName of type String and then ...