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[AngularJS] Filter filter Ex

filter angularjs EX
2023-09-14 08:59:21 时间

Filter All the Things

Let's start cleaning up our notes tweeted page using filters.

On the notes tweeted page, within the tweeted.html template, use filterto display only notes that have been tweeted (i.e., having a tweetedproperty set to true).

<div class="note-wrapper">
  <div class="note-content">
    <div class="notes-header">
      <h1 title="Notes">Tweeted Notes</h1>
      <input type="search" ng-model="searchTerm"/><label>Search</label>
    </div>

    <div class="note-wrapper">
      <a class="card-notes" ng-repeat="note in notes | filter: {tweeted: true}" ng-href="#/notes/{{note.id}}">
        <div class="card" title="{{note.title}}">
          <h2 class="h3">{{note.title}}</h2>
        </div>
      </a>
    </div>
  </div>
</div>

 

Chaining Filters

The notes tweeted page has a search field so that users can filter notes. Let's take advantage of this using another filter.

Add an additional search filter to the displayed notes on our notes tweeted page.

<div class="note-wrapper">
  <div class="note-content">
    <div class="notes-header">
      <h1 title="Notes">Tweeted Notes</h1>
      <input type="search" ng-model="searchTerm"/><label>Search</label>
    </div>

    <div class="note-wrapper">
      <a class="card-notes" ng-repeat="note in notes | filter: {tweeted: true} | filter: searchTerm" ng-href="#/notes/{{note.id}}">
        <div class="card" title="{{note.title}}">
          <h2 class="h3">{{note.title}}</h2>
        </div>
      </a>
    </div>
  </div>
</div>

 

A Date Filter

The tweetedDate is now being displayed on each tweeted note card. Let's format it! See the Angular documentation for the appropriate elements to compose the format string.

Use a filter to display the tweeted date in our p tag like so: Tweeted on a Monday in October.

<div class="note-wrapper">
  <div class="note-content">
    <div class="notes-header">
      <h1 title="Notes">Tweeted Notes</h1>
      <input type="search" ng-model="searchTerm"/><label>Search</label>
    </div>

    <div class="note-wrapper">
      <a class="card-notes" ng-repeat="note in notes | filter: {tweeted: true}" ng-href="#/notes/{{note.id}}">
        <div class="card" title="{{note.title}}">
          <h2 class="h3">{{note.title}}</h2>
          <p>{{ note.tweetedDate | date: "'Tweeted on a' EEEE 'in' MMMM" }}</p>
        </div>
      </a>
    </div>
  </div>
</div>

 

It's the middle of the night and you are ready to finish your Angular NoteWranglerapp! You realize the title of our card container div would be more beneficial if it included a fancy date along with the title of the note.

Add the date to the end of the title and format it like so: Oct. 08.

<div class="note-wrapper">
  <div class="note-content">
    <div class="notes-header">
      <h1 title="Notes">Tweeted Notes</h1>
      <input type="search" ng-model="searchTerm"/><label>Search</label>
    </div>

    <div class="note-wrapper">
      <a class="card-notes" ng-repeat="note in notes | filter: {tweeted: true}" ng-href="#/notes/{{note.id}}">
        <div class="card" title="{{note.title}} {{note.tweetedDate | date: 'MMM. dd'}}">
          <h2 class="h3">{{note.title}}</h2>
          <p>{{ note.tweetedDate | date: "'Tweeted on a' EEEE 'in' MMMM" }}</p>
        </div>
      </a>
    </div>
  </div>
</div>

 

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