javascript - 在循环中创建多个具有不同名称的对象

Question

我想创建一个具有多个“书架”的“库”，但我不知道如何在使用 for 循环创建它们时以不同的方式命名每个书架:

function library(initLibraryName, initNumberOfShelves, initNumberOfBooks)
{
    this.name = initLibraryName;
    this.numberOfShelves = initNumberOfShelves;
    this.numberOfBooks = initNumberOfBooks;
    for (var i = 0; i < numberOfShelves; i++)
    {
       this.shelf = new shelf(i, numberOfBooks/numberOfShelves);
    }
} 

Answer 1

我不知道为什么你要创建新的架子实例，但首先你应该声明它

// by convention constructor name should start with uppercase letter
function Library(initLibraryName, initNumberOfShelves, initNumberOfBooks) {
    this.name = initLibraryName;
    this.numberOfShelves = initNumberOfShelves;
    this.numberOfBooks = initNumberOfBooks;
    this.shelf = []; // at first you need to define an array
    for (var i = 0; i < numberOfShelves; i++) {
        // then push Shelf instances to an array
        this.shelf.push(new Shelf(i, this.numberOfBooks / this.numberOfShelves)); 
    }
}

function Shelf(arg1, arg2) {
    this.prop1 = arg1;
    this.prop2 = arg2;
    this.method = function () {
        // some logic
    }
}