123

Pen Settings

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

You're using npm packages, so we've auto-selected Babel for you here, which we require to process imports and make it all work. If you need to use a different JavaScript preprocessor, remove the packages in the npm tab.

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

Use npm Packages

We can make npm packages available for you to use in your JavaScript. We use webpack to prepare them and make them available to import. We'll also process your JavaScript with Babel.

⚠️ This feature can only be used by logged in users.

Code Indentation

     

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.

HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
              <div id='target'>no snapshots</div>
            
          
!
            
              /*
  Write a bubble sort here
  Name the function bubbleSort
  
  If you want to suspend running the unit tests, change describe to xdescribe
  
  Bubble sort works by comparing two adjacent numbers next to each other and then
  swapping their places if the smaller index's value is larger than the larger
  index's. Continue looping through until all values are in ascending order
  
  Provided is an optional visualization helper. Call snapshot(yourArray) at the
  beginning of each iteration of your inner loop with the state of the being-sorted
  array and the helper tool will show you how your array looks in the HTML section
  of CodePen. This is optional and only for your help.
  
  
*/

var bubbleSort = nums => {  
  do {
    var swapped = false;
    for (var i = 0; i < nums.length; i++) {
      snapshot(nums);
      if (nums[i] > nums[i+1]) {
        var temp = nums[i];
        nums[i] = nums[i+1];
        nums[i+1] = temp;
        swapped = true;
      }
    }
  } while(swapped);
  snapshot(nums);
};

// unit tests
// do not modify the below code
describe('bubble sort', function() {
  it('should sort correctly', () => {
    var nums = [10,5,3,8,2,6,4,7,9,1];
    bubbleSort(nums);
    expect(nums).toEqual([1,2,3,4,5,6,7,8,9,10]);
    done();
  });
});
            
          
!
999px
🕑 One or more of the npm packages you are using needs to be built. You're the first person to ever need it! We're building it right now and your preview will start updating again when it's ready.

Console