使用Angular清除HTML内容

时间:2014-09-10 23:00:34

标签: javascript html angularjs

我正在尝试隐藏我在index.html中包含的HTML部分。现在发生的事情是当我搜索用户时,表格以及内容会在页面上呈现。我想要的行为是当按下“清除”时,包括HTML表及其内容被删除。现在,该表仅显示$ scope.user是否具有值,并且该检查是使用ng-if完成的。当我单击“清除”按钮时,我将$ scope.user设置为“false”,我认为这将删除包含。我也尝试将它添加到表DOM元素,但这也不起作用。我得不到什么?对于那些了解Angular的人来说,我确信这是一个相当简单的解决方案。

的index.html

<!DOCTYPE html>
<html ng-app="githubViewer">

<head>
  <script data-require="angular.js@*" data-semver="1.3.0-beta.5" src="https://code.angularjs.org/1.3.0-beta.5/angular.js"></script>
  <link rel="stylesheet" href="style.css" />
  <script src="script.js"></script>
</head>

<body ng-controller="MainController">
  <h1>{{ message }}</h1>

  <div>{{ error }}</div>
  <form name="searchUser" ng-submit="search(username)">
    <input type="search" required placeholder="Username..." ng-model="username" />
    <input type="submit" value="Search" />
    <button ng-click="clearSearch()">Clear</button>
  </form>

  <div ng-include="'userDetails.html'" ng-if="user"></div>
</body>

</html>

的script.js

(function() {

  var app = angular.module("githubViewer", []);

  var MainController = function($scope, $http) {

    var onUserComplete = function(response) {
      $scope.user = response.data;
      $http.get($scope.user.repos_url)
        .then(onRepos, onError);
    };

    var onRepos = function(response) {
      $scope.repos = response.data;
    }

    var onError = function(reason) {
      $scope.error = "Could not fetch the data";
    }

    $scope.search = function(username) {
      $http.get("https://api.github.com/users/" + username)
        .then(onUserComplete, onError);
    }

    $scope.clearSearch = function() {
      return ($scope.user = false);
    }

    $scope.message = "Github Viewer";
    $scope.repoSortOrder = "+name";
  };


  app.controller("MainController", ["$scope", "$http", MainController])

}());

userDetail.html

<div>
  <h2>{{ user.name }}</h2>
  <img ng-src="http://www.gravatar.com/avatar/{{ user.gravatar_id }}" />
  <h2>User Repositories</h2>
  Order By:
  <select ng-model="repoSortOrder">
    <option value="+name">Name</option>
    <option value="-stargazers_count">Stars</option>
    <option value="+language">Language</option>
  </select>
  <table>
    <thead>
      <tr>
        <th>Repository Name</th>
        <th>Stars</th>
        <th>Language</th>
      </tr>
    </thead>
    <tbody>
      <tr ng-repeat="repo in repos | orderBy:repoSortOrder">
        <td><a href="{{ repo.html_url }}">{{ repo.name }}</a>
        </td>
        <td>{{ repo.stargazers_count | number }}</td>
        <td>{{ repo.language }}</td>
      </tr>
    </tbody>
  </table>
</div>

2 个答案:

答案 0 :(得分:0)

我最终搞清楚了。 <问题是

<button ng-click="clearSearch()">Clear</button>

<form>,所以当我点击“清除”按钮时,搜索功能再次被执行。我通过Chrome控制台注意到这一点,因为我打开了XHR请求...当我点击“清除”时,正在执行另一个GET。

我将按钮移到<form>之外,功能按预期工作。

答案 1 :(得分:-1)

clearSearch()应该设置$ scope.user的值而不是返回值:

$scope.clearSearch = function() {
  $scope.user = false;
}