Aspects applied to instance methods

InstanceMethodsAOP.js

function loggerAspect(joinPoint, logger) {
        return function (...args) {
                logger.log("logging");
                return joinPoint.apply(this, args)
        }
}

class Person {
        constructor(name) {
                this.name = name
        }

        greeting() {
                return "Hello " + this.name
        }
}

const person = new Person("john doe");

person.greeting();
// <- "Hello john doe"

// Apply logger aspect
Person.prototype.greeting = loggerAspect(Person.prototype.greeting, console)

person.greeting();
// logging
// <- "Hello john doe"