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HTML

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HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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Adding Classes

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About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

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Insecure Resource

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CSS

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.

If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

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Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

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About Packages

Using packages here is powered by Skypack, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ES6 import usage.

All packages are different, so refer to their docs for how they work.

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HTML 

              
                <div id="app" class="container">

  <div class="text-center" style="padding: 20px;">
    <h3>Drag 'n Drop with VueJS and SortableJS</h3>
    <span>Drag available option to the right.</span>
  </div>
   <div class="row" style="margin:5px; border-radius: 2px; padding: 5px; background-color: #F4F4F4;">
       <li class="selected card" v-for="option in selected" v-colorswatch>
        {{ option }}
      </li>    
  </div>
  
  <div class="row">
    <div class="col">
      <ul class="options list-group" v-sortable="{onAdd: pullItem, group: {name: 'options', put: ['answers']}}">
         <p>Available Options</p>
         <li v-for="option in options" :key="option.id" class="list-group-item">
            {{ option.title }}          
         </li>
      </ul>
    </div> 
    <div class="col">      
      <ul id="list" class="answers list-group" v-sortable="{onAdd: pushItem, group: {name: 'answers', put: ['options']}}">
        <p>Selected Options</p>
         <li v-for="option in answers" :key="option.id" class="list-group-item">
              {{ option }}
         </li>
      </ul>
    </div>
  </div> <!-- End of Row -->  
</div> <!-- End of Container -->
!

CSS 

              
                body { 
  font-family: 'Roboto Slab', serif;
background-image: linear-gradient(to top, #f3e7e9 0%, #e3eeff 99%, #e3eeff 100%);
  height: 100vh;
}
ul { 
    padding: 10px !important;
  border-radius: 5px;
}
p{
  color: #F4F4F4;
}
.options { 
    background-color: #e6e9f0;  
background-image: linear-gradient(60deg, #3d3393 0%, #2b76b9 37%, #2cacd1 65%, #35eb93 100%);
}
.answers { 
    background-color: #c1dfc4; 
  background-image: linear-gradient(-20deg, #fc6076 0%, #ff9a44 100%);
}
li { 
  cursor: move;
  opacity: 0.9;
}
.selected {
  list-style:none;
  color: #FFF;
  margin: 5px;
  padding: 5px;
  font-size: 13px;
  border-radius: 2px;
}
!

JS 

              
                Vue.directive( 'sortable', {
  inserted: function(el, binding) {
    var sortable = new Sortable(el, binding.value || {});
  },
});
Vue.directive('colorswatch', function(el, binding) {
let colors = [
        { id: 1, name: "#F44336" }, 
        { id: 2, name: "#E91E63" },
        { id: 3, name: "#9C27B0" },
        { id: 4, name: "#673AB7" },
        { id: 5, name: "#2196F3" },
        { id: 6, name: "#3F51B5" },
        { id: 7, name: "#ff5722" },
        { id: 8, name: "#009688" },
        { id: 9, name: "#4caf50" },
        { id: 10, name: "#ff9800" },
        { id: 11, name: "#607d8b" },
        { id: 12, name: "#00bcd4" },
        { id: 13, name: "#03a9f4" },
    ];

    let randomId = _.random(1, 13);
    let color = _.find(colors, p=>p.id == randomId);    
    return el.style.backgroundColor = color.name;
})

new Vue({

  el: '#app',
  
  data: {
      options: [
        {id: 1, title: "Sales Cloud"},
        {id: 2, title: "Service Cloud"},
        {id: 3, title: "Community Cloud"},        
        {id: 4, title: "Financial Cloud"},
        {id: 5, title: "Einstein AI"},
        {id: 6, title: "Wave Analytics"},
        {id: 7, title: "Health Cloud"},
      ], 
    answers:[],
    selected: {}, 
  },
  watch: {
    selected: function(newValue) {
      console.log('newValue');
      console.log(newValue);
    }
  },
  methods: {
    pushItem (evt) {               
      let obj = _.find(this.options, function(item, key) {       
          if(item.title == evt.item.textContent.trim() )           
            return item             
      })             
      //  this.selected[obj.id] = obj.title;
      Vue.set(this.selected, obj.id, obj.title)
     //console.log(this.selected);      

   }, // end of pushItem 
    pullItem (evt) {
       let obj = _.find(this.options, function(item, key) {            
         if(item.title == evt.item.textContent.trim() )           
            return item
        })
      // delete this.selected[obj.id]; // working
       // Vue.remove(this.selected, obj.id, obj.title)
       Vue.delete(this.selected, obj.id)
      // console.log(this.selected);         
    }, // end of pullItem
 }
});
!
999px

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