proxyMagic

proxyMagic.js

function doMagic(obj) {
    return new Proxy(obj, {
        construct: (target, args) => {
            return doMagic(new target(...args))
        },
        get: (target, name) => {
            let prop = Reflect.get(target, name)
            if (typeof prop === 'function') {
                return prop.bind(target)
            }
            return prop
        },
    })
}


function _doMagic(obj) {
    return obj
}


class Pyos {

    constructor(name) {
        this.name = name
    }

    woof(sound) {
        if (typeof this === 'undefined') {
            console.log(`this says "undefined is not a function"`)
        } else {
            console.log(`${this.name} says "woof!"`)
        }
    }

}


function executeCallback(callback) {
    callback()
}


Pyos = doMagic(Pyos)
let pyos = new Pyos('Sharique')
pyos.woof()
let cb = pyos.woof
executeCallback(cb)