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Explaining classes in ES 2015 via Man and SuperMan
"use strict";
var _get = function get(_x, _x2, _x3) { var _again = true; _function: while (_again) { var object = _x, property = _x2, receiver = _x3; _again = false; if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { _x = parent; _x2 = property; _x3 = receiver; _again = true; desc = parent = undefined; continue _function; } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } } };
var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var Man = (function () {
function Man(name, powers) {
_classCallCheck(this, Man);
this.name = name;
this.powers = powers;
}
_createClass(Man, [{
key: "defineMe",
value: function defineMe() {
console.log("I am", this.name);
console.log("My powers are:");
this.powers.forEach(function (p) {
return console.log(p);
});
}
}]);
return Man;
})();
;
var SuperMan = (function (_Man) {
_inherits(SuperMan, _Man);
function SuperMan(name, powers, superpowers) {
_classCallCheck(this, SuperMan);
_get(Object.getPrototypeOf(SuperMan.prototype), "constructor", this).call(this, name, powers);
this.superpowers = superpowers;
}
_createClass(SuperMan, [{
key: "defineMe",
value: function defineMe() {
_get(Object.getPrototypeOf(SuperMan.prototype), "defineMe", this).call(this);
console.log("My super powers are:");
this.superpowers.forEach(function (p) {
return console.log(p);
});
}
}]);
return SuperMan;
})(Man);
;
var me = new Man("Ecmasccript Hacker", ["Hacking", "EcmaScript"]);
var superman = new SuperMan("SuperMan", ["Reporting", "Wry smile"], ["Laser eyes", "X Ray vision", "Super strength"]);
me.defineMe();
superman.defineMe();
class Man {
constructor(name, powers){
this.name = name;
this.powers = powers;
}
defineMe() {
console.log("I am", this.name);
console.log("My powers are:");
this.powers.forEach(p => console.log(p));
}
};
class SuperMan extends Man {
constructor(name, powers, superpowers){
super(name, powers);
this.superpowers = superpowers;
};
defineMe(){
super.defineMe();
console.log("My super powers are:");
this.superpowers.forEach(p => console.log(p));
}
};
var me = new Man("Ecmasccript Hacker", ["Hacking", "EcmaScript"]);
var superman = new SuperMan("SuperMan", ["Reporting", "Wry smile"], ["Laser eyes", "X Ray vision", "Super strength"]);
me.defineMe();
superman.defineMe();
I am Ecmasccript Hacker
My powers are:
Hacking
EcmaScript
I am SuperMan
My powers are:
Reporting
Wry smile
My super powers are:
Laser eyes
X Ray vision
Super strength
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