jquery - angular里li中按钮删除本行？

Question

//HTML部分
<ul class="rows">

<p class="btnBox">
    <button class="change" ui-sref="home" ng-click="redact()">编辑</button><br />
</p>
<li ng-repeat="(row,value) in data">
    <span id="hid" style="display:inline-block;white-space: nowrap;overflow: hidden;width: 200px;text-overflow: ellipsis;">{{value.content}}</span>
    <button class="showBtn" ng-show="value.show">删除</button class="showBtn" >
    <span>{{value.title}}</span>
</li>

</ul>

//js部分
$scope.redact = function() {

            if($(".change").html() == "编辑") {
                $(".change").html("完成")
                angular.forEach(data, function(data) { data.show = true })
                //当删除按钮显示时，实现其删除
                console.log($(".showBtn"))
                //$(".showBtn").onclick = function(){alert(1)}
                //$("li").each = function() {$(".showBtn").onclick = function() { alert(1) }}
                //$(".showBtn").each = function() {$(this).onclick = function() { alert(1) }}
            } else if($(".change").html() == "完成") {
                $(".change").html("编辑")
                angular.forEach(data, function(data) { data.show = false })
            }
        }

为什么 注释部分无反馈？？错了吗？哪里错了？该如何改？

Answer 1

Angular is a data-driven model. If you delete a row, just delete the element at that position in the array.

That is:

$scope.data.splice(index,1);// index 为你点击的索引

Answer 2

You need to bind ng-click to the delete button, because what you want to achieve is to click the delete button of the current row to delete the current row.

<button class="showBtn" ng-show="value.show" ng-click="removeLine($index)">删除</button class="showBtn" >

$scope.removeLine = function(index) {
  $scope.data.splice(index, 1);
}

As for $index 是啥，其实就是 ng-repeat 过程中，一个隐藏的值。$index 存在于每一个生成的元素中，从 0 开始。$scope.data 也是从 index 为 0 开始，所以就有了上面的写法。只要你传入了当前的 $index，就可以定位到要删除的数据，直接在 data, just delete it. When the data changes, the page display content will be automatically updated, which is a characteristic of data-driven.

---

I don’t understand what you want to implement in $scope.redact 里面实现什么。如果你改 data.show，然后又在 button 里面写了 ng-show="value.show"，那么证明这个 show 是用来控制 “删除” 按钮显示与否的，而不是去控制当前行显示与否。因此，看不出这段代码与你需求之间有何关联
另外，$(".change").html() 你这是在用 jQuery 去实现 toggle？jQuery 的思路与 AngularJS 就完全不同。jQuery 是事件驱动，AngularJS 是数据驱动。这里如果你要实现按钮文字 “编辑” 换成 “完成”，完全可以通过 $scope 与 {{}}(interpolation). For example:

$scope.buttonText = '编辑';

<button>{{buttonText}}</button>

Then add ng-click

to this button

<button ng-click="edit()">{{buttonText}}</button>

Then write the callback:

$scope.edit = {
  if ($scope.buttonText === '编辑') {
    $scope.buttonText = '完成';
  } else if ($scope.buttonText === '完成') {
    $scope.buttonText = '编辑';
  }
}

This way you can achieve the most basic toggle. The optimization that can be done is that if your status only has two statuses: editing and completion, then you can set a flag and $scope.editFlag = true。true 代表编辑状态，false 代表完成状态。参照上面的思路，if 里面直接用这个 $scope.editFlag just judge it.

Since you are using AngularJS, adapt to the ideas of AngularJS. For your current needs, you don’t need to use jQuery to achieve it