Arrow function expressions

An arrow function expression is a compact alternative to a traditional function expression , with some semantic differences and deliberate limitations in usage:

Arrow functions don't have their own bindings to this , arguments , or super , and should not be used as methods .

Arrow functions cannot be used as constructors . Calling them with new throws a TypeError . They also don't have access to the new.target keyword.

Arrow functions cannot use yield within their body and cannot be created as generator functions.