Sort an array in Vue.js

How can I sort an array by name or sex before displaying it in a v-for loop? https://jsfiddle.net/rg50h7hx/

<div id="string">
  <ul>
    <li v-for="array in arrays">{{ array.name }}</li>
  </ul>
</div>

// Vue.js v. 2.1.8
var string = new Vue({
  el: '#string',
  data: {
    arrays: [
      { name: 'kano',    sex: 'man' },
      { name: 'striker', sex: 'man' },
      { name: 'sonya',   sex: 'woman' },
      { name: 'sindell', sex: 'woman' },
      { name: 'subzero', sex: 'man' }
    ]
  }
})

Do I have to use a "computed", or whatever?

Solution 1:

Yes, an easy way to do this can be create a computed property which can return the sortedArray, like following:

computed: {
  sortedArray: function() {
    function compare(a, b) {
      if (a.name < b.name)
        return -1;
      if (a.name > b.name)
        return 1;
      return 0;
    }

    return this.arrays.sort(compare);
  }
}

See working demo.

You can find the documentation of sort here which takes a compareFunction.

compareFunction Specifies a function that defines the sort order. If omitted, the array is sorted according to each character's Unicode code point value, according to the string conversion of each element.

Solution 2:

with arrow functions es6:

sortedArray(){
    return this.arrays.sort((a, b) => a.name - b.name );
}

Solution 3:

Html side

<div id="string">
      <ul>
        <li v-for="array in sortArrays(arrays)">{{ array.name }}</li>
      </ul>
    </div>

Vue js code || Using Lodash

var string = new Vue({
  el: '#string',
  data: {
    arrays: [
      { name: 'kano',    sex: 'man' },
      { name: 'striker', sex: 'man' },
      { name: 'sonya',   sex: 'woman' },
      { name: 'sindell', sex: 'woman' },
      { name: 'subzero', sex: 'man' }
    ]
  },
  methods: {
     sortArrays(arrays) {
            return _.orderBy(arrays, 'name', 'asc');
        }
  }
})

• in orderBy function, first argument is array, 2nd argument is key (name / sex) 3rd argument is order (asc / desc)