optionClass.js

optionClass.js

var Person = class {
	constructor(options) {
		this.name = options.name;

		[...Object.keys(options.methods)].forEach(key => {
			this[key] = options.methods[key]
		})
	}
}

const dali = new Person({
	name: 'dali',
	methods: {
		sayHello(){
			console.log(`hello I am ${this.name}`)
        }
	}
})

dali.sayHello()
hello I am dali