javascript class inheritance
// Class Inheritance in JavaScript
class Mammal {
constructor(name) {
this.name = name;
}
eats() {
return `${this.name} eats Food`;
}
}
class Dog extends Mammal {
constructor(name, owner) {
super(name);
this.owner = owner;
}
eats() {
return `${this.name} eats Chicken`;
}
}
let myDog = new Dog("Spot", "John");
console.log(myDog.eats()); // Spot eats chicken
4
1
function inherit(c, p) {
Object.defineProperty(c, 'prototype', {
value: Object.assign(c.prototype, p.prototype),
writable: true,
enumerable: false
});
Object.defineProperty(c.prototype, 'constructor', {
value: c,
writable: true,
enumerable: false
});
}
// Or if you want multiple inheritance
function _inherit(c, ...p) {
p.forEach(item => {
Object.defineProperty(c, 'prototype', {
value: Object.assign(c.prototype, item.prototype),
writable: true,
enumerable: false
});
})
Object.defineProperty(c.prototype, 'constructor', {
value: c,
writable: true,
enumerable: false
});
}
Thank you!
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