Question

我有这段代码：

<ul class="unstyled">
    <li class="card" ng-repeat="user in users">
        <form ng-submit="edit()">
            <input type="text" ng-model="editname"  size="30"placeholder="add name here">
            <input class="btn-primary" type="submit" value="edit">
        </form>
    </li>
</ul>

哪个card类将基于users数组重复。我希望拥有唯一的ng-model，这样当我编辑其中一个时，它就不会影响其他人。我相信我可以使用$index。我怎么做

ng-model="editname"

到

ng-model="editname + $index"

或者有更好的方法吗？

Answer 1

尝试使用ng-repeat实例命名模型

喜欢这个

private static int LINE_LENGTH = 50;
private static int NOT_HAPPY = -1;

public static void main(final String[] args)
{
    final int start = Integer.parseInt(args[0]);
    final int end = Integer.parseInt(args[1]);

    final List<Integer> happy = new ArrayList<Integer>();
    for (int i = start; i <= end; i++)
    {
        if (isHappy(i))
        {
            happy.add(i);
        }
        else
        {
            happy.add(NOT_HAPPY);
        }
    }
    final StringBuilder sb = new StringBuilder(60);
    final Iterator<Integer> ii = happy.iterator();
    while (ii.hasNext())
    {
        final int i = ii.next();
        if (i == NOT_HAPPY) { sb.append("."); }
        else { sb.append(String.format("%d", i)); }
        if (sb.length() >= LINE_LENGTH)
        {
            System.out.println(sb.toString());
            sb.setLength(0);
            sb.ensureCapacity(60);
        }
        else if (!ii.hasNext())
        {
            System.out.println(sb.toString());
        }
    }
}

您可以通过editname属性

检查

1.....7..10..13.....19...23....28..3132...........
44....49..................68.70........79..82...86
....91..94..97..100..103.....109..................
.129130..133.....139...........................167
........176...........188.190.192193.........203..
..208..........219......226...230.....236..239....
..................262263................280.......
...291.293.......301302.......310..313.....319320.
....326..329.331......338.................356.....
362..365.367368.......376..379...383..386....391392
....397......404....409...........................
...440.....446.................464....469........478
........487..490.....496..........................
.............536...................556......563.565
566.........................................608...
.....617....622623........632..635.637638.....644.
...649...653.655656........665.....671.673......680
..683..........694.....700........709......716....
...............736..739........748............761.
763....................784.....790..793........802
...806...........818.820............833..836......
....847............860..863..........874......881.
.....888..........899.901..904..907..910.912913...
....921.923.......931932....937..940.....946......
...........964.....970..973...............989.....
...998.1000

列表中的重复项

Answer 2

如果您真的关心索引，可以在用户实例上设置索引。然后使用＆＃39; user.index＆＃39;作为型号名称。如果没有，您可以使用Anik的答案。

angularjs - 将`$ index`添加到`ng-model`中

2 个答案: