我有一个库存类。在那个类中,我有两个函数,其中包含一组项。我想抓住两个阵列中的所有物品,并将它们一起推入一个singel数组中,然后用它过滤出物品。将对象推入数组
class Inventory {
private _lions = [];
private _wolves = [];
private _allAnimals: Array<any> = [];
getAllLions(): void {
const lions: Array<ILion> = [
{ id: 1, name: 'Joffrey', gender: Gender.male, age: 20, price: 220, species: Species.lion, vertrabrates: true, warmBlood: true, hair: 'Golden', runningSpeed: 30, makeSound() { } },
{ id: 2, name: 'Tommen', gender: Gender.male, age: 18, price: 230, species: Species.lion, vertrabrates: true, warmBlood: true, hair: 'Golden', runningSpeed: 30, makeSound() { } },
{ id: 3, name: 'Marcella', gender: Gender.female, age: 24, price: 180, species: Species.lion, vertrabrates: true, warmBlood: true, hair: 'Golden', runningSpeed: 30, makeSound() { } },
];
for (let lion of lions) {
this._lions.push(lion);
}
}
getAllWolves(): void {
const wolves: Array<IWolf> = [
{ id: 1, name: 'Jon', gender: Gender.male, price: 130, species: Species.wolf, age: 13, vertrabrates: true, warmBlood: true, hair: 'Grey', runningSpeed: 30, makeSound() { } },
{ id: 2, name: 'Robb', gender: Gender.male, price: 80, species: Species.wolf, age: 18, vertrabrates: true, warmBlood: true, hair: 'Black', runningSpeed: 30, makeSound() { } },
{ id: 3, name: 'Sansa', gender: Gender.female, price: 10, species: Species.wolf, age: 35, vertrabrates: true, warmBlood: true, hair: 'Grey', runningSpeed: 30, makeSound() { } },
{ id: 4, name: 'Arya', gender: Gender.female, price: 190, species: Species.wolf, age: 8, vertrabrates: true, warmBlood: true, hair: 'White', runningSpeed: 30, makeSound() { } },
];
for (let wolf of wolves) {
this._wolves.push(wolf);
}
}
getAllAnimals(): void {
this._allAnimals = this._lions.concat(this._wolves);
};
findByTemplate(template: any): Array<any> {
return this._allAnimals.filter(animal => {
return Object.keys(template).every(propertyName => animal[propertyName] === template[propertyName]);
});
}
}
做为狮子和狼的数组上的循环工作,但我宁愿推动整个阵列的领域。但后来我在数组内引入一个数组,导致过滤函数出现问题。
是否有可能将狮子数组推入_lion字段,而不是将数组插入数组中?
你觉得有一个首选的方式来做到这一点?性能明智? –
我不知道性能是否明智,但将_adds_项目推送到数组,而concat _returns一个新的array_。所以它可能取决于你是否想保持你的源数组,或改变它。 –