keyof extracts the keys of an interface or type and can be used to generate a new type. typeof generates a type from an object. The combination of keyof and typeof can generates a type from an object.

This page shows 3 ways to set default values to an interface. Using Spread Operator is an easy way. You can also define the default values in a function. An advanced way is to create a class for it.

I needed to use node-serialport to use a scanner for my project. I have two scanners. One of them works fine but another...

I wrote the following article before.When we want to access a property of an object, we must somehow tell the compiler i...

While I read a book on API Design Patterns, I found decorators were used in the examples.It looks like this.@get("resour...