Yuto

Symbol.iterator can be used to initialize the iterator. If you need to go back to the first element after the iterator goes forward, it's the right place to use it. This post shows the example.

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...