Javascript 将 key 添加到工厂函数对象

Question

如果这个问题已在上一篇文章中得到解答，我深表歉意。我看了看，但没有找到类似的东西。我想知道是否有人知道如何将 key 添加到工厂函数的结果对象中。意思是，在工厂函数之外，我想稍后添加一个键，而不是返回到工厂函数本身并更改输出应该是什么。

/*below you will see where I have tried to add the key from the outside using the function name as the object name similiar to how one would with a standard object but the code below will return undefinded, my guess is because the object has no name, but rather is simply returned.*/

function createCharacter(name, nick, race, origin, attack, defense){
	return {
		name: name,
		nickname: nick,
		race: race,
		origin: origin,
		attack: attack,
		defense: defense,
		describe: function(){
			console.log(`${this.name} is a ${this.race} from ${this.origin}`);
		}
}

createCharacter.weapon = weapon;

Answer 1

您需要使用new createCharacter()创建该函数的实例:

/*below you will see where I have tried to add the key from the outside using the function name as the object name similiar to how one would with a standard object but the code below will return undefinded, my guess is because the object has no name, but rather is simply returned.*/

function createCharacter(name, nick, race, origin, attack, defense){
	return {
		name: name,
		nickname: nick,
		race: race,
		origin: origin,
		attack: attack,
		defense: defense,
		describe: function(){
			console.log("${this.name} is a ${this.race} from ${this.origin}"+weapon);
		}
    }
}

x = new createCharacter()
x.weapon = "sword";
console.log(x.weapon);