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javascriptsortingvue.jsv-for

Vue.js: Sort a list based on method


I'm fetching some raw data and displaying a list of items. Each item has a complex property that I generate with a method (which is not a computed property). That property might change on user input. Is it possible to sort the items of the list based on that property?

HTML:

<ul>
  <li v-for="item in items">
    <span>{{ calculateComplexProperty(item.time) }}</span>
  </li>
</ul>

JavaScript:

calculateComplexProperty: function (time) {
  // this.distance is an external factor that is not a property of the list item, 
  // and that can be manipulated by the user
  var speed = time * this.distance;

  return speed;
}

So each item has a time value that is manipulated by a global, dynamic factor, "distance". The idea is to automatically sort the items whenever the "distance" changes and also, to update the "speed" property. Is this possible?


Solution

  • How about this?

    computed:{
        sortedItems(){
            return this.items.sort((a,b) => 
                 this.calculateComplexProperty(a.time) - this.calculateComplexProperty(b.time))
        }
    }
    

    Template

    <li v-for="item in sortedItems">