Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

+ add another resource

JavaScript

Babel is required to process package imports. If you need a different preprocessor remove all packages first.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Behavior

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                <html lang="en">
<head>
  <meta charset="UTF-8" />
  <title>Promises</title>
</head>
<body>
  <div id='content'></div>
</body>
</html>
              
            
!

CSS

              
                body {
    background: url("https://images.unsplash.com/photo-1494088644719-c75cad020cff?dpr=1&auto=compress,format&fit=crop&w=1199&h=798&q=80&cs=tinysrgb&crop=&bg=") no-repeat center center fixed;
      background-size: cover;
    }
    div p {
      margin-top: 2em;
      font-size: 4em;
      text-align: center;
      color: #03A9F4;
      font-weight: bold;
      font-family: Ubuntu, Roboto, Arial, sans-serif;
      text-shadow: 3px 3px 10px #eee;
    }
              
            
!

JS

              
                // Check if browser supports promises
if ( window.Promise ) {
  // create a new promise with resolve and reject functions for the outcome
  var promise = new Promise( ( resolve, reject ) => {

    // Fetch json from the blog - we will request a description
    // To avoid CORS issues we use cors-anywhere.herokuapp.com
    var request = fetch( 'https://cors-anywhere.herokuapp.com/http://22nds.com/wp-json/' )
      .then( response => {
        // Check if we got 2xx response from the server
        if ( response.ok ) {
          return response.json();
        } else {
          reject( Error( response ) );
        }
      } )
      .then( json => {
        // we got the data, and the promise can now parse it
        resolve( json );
      } )
      .catch( error => {
        display( error );
      } );
  } );

  promise.then( data => {
    // display the name of the blog
    display( data.description );
  }, error => {
    display( error );
  } );
}

// Helper function to display results
function display( content ) {
  var resultDiv = document.createElement( 'p' );
  var textnode = document.createTextNode( content );
  resultDiv.appendChild( textnode );
  document.getElementById( "content" )
    .appendChild( resultDiv );
}
              
            
!
999px

Console