An arrow function expression is a compact alternative to a traditional function expression, with some semantic differences and deliberate limitations in usage:| MDN Web Docs
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The set syntax binds an object property to a function to be called when there is an attempt to set that property. It can also be used in classes.| MDN Web Docs
The static keyword defines a static method or field for a class, or a static initialization block (see the link for more information about this usage). Static properties cannot be directly accessed on instances of the class. Instead, they're accessed on the class itself.| MDN Web Docs
The get syntax binds an object property to a function that will be called when that property is looked up. It can also be used in classes.| MDN Web Docs