The with statement in ES6

withES6.js

//	Like the with statement, but in ES6 and scoped only onto obj
const withES6 = function(obj, code){
	const scope = new Function(...Object.keys(obj), code);
	scope(...Object.values(obj));
};

//	Test
let myObj = {
	res: {},
	a: 3,
	b: 2
};
let code = "res.sum = a + b;\nres.mul = a * b;";
withES6(myObj, code);
console.log(myObj.res);	// {sum: 5, mul: 6}