如何通过追加for循环将多个元素插入到一个元素中？

Question

如何通过追加for循环将多个元素插入到一个元素中？

当我尝试在for循环中追加多个元素时,为什么只插入最后一个元素,我感到非常困惑.

我创建了一个JsFiddle,展示了我无法让它发挥作用.我希望插入100个锚标签,但只插入最后一个元素.

为了后面的缘故,这里是相关的JavaScript,TODO标志着相关部分:

Math.randomNumber = function(max) {
    return Math.round(Math.random() * max % max);
}


var Door = {
    $el: $('<a>', {
        class: 'door selectable'
    }),
    number: null,
    isSelected: false,
    containsZonk: true,
    bind: function () {
        var that = this;
        this.$el.on('click tap', function () {
            that.isSelected = true
        });
    }
}

var Platform = {
    $el: null,
    doorCount: null,
    jackpotNumber: null,
    doors: [],
    init: function($el, doorCount) {
        this.$el = $el;
        this.doorCount = doorCount;

        for (var i = 0; i <= doorCount - 1; i++) {
            var door = Object.create(Door);
            door.number = i;
            door.$el.html(i.toString());
            this.doors.push(door);

            /* TODO: wtf why is only last one inserted? */
            this.$el.append(door.$el);
        }

        this.jackpotNumber = Math.randomNumber(doorCount);
        this.doors[this.jackpotNumber].containsZonk = false;
    }
}
    $(document).ready(function(){
        var platform = Object.create(Platform);
        var $game = $('.door_game');
        platform.init($game, 100);
    });

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我想将所有100个元素插入div.door_game:

<body>
    <h1>Zonk!</h1>
        <div class="door_game" data-doors="10">
        </div>
</body>

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Answer 1

pla*_*alx 6

这是因为你所有的门都是一样的$el.

http://jsfiddle.net/U9swZ/9/

var Door = {
    number: null,
    isSelected: false,
    containsZonk: true,
    bind: function () {
        var that = this;
        this.$el.on('click tap', function () {
            that.isSelected = true
        });
    },
    init: function () {
        this.$el = $('<a>', {
            class: 'door selectable'
        });
        return this;
    }
}

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