CODE EXAMPLE FOR JAVASCRIPT

vuejs methods

var vm = new Vue({
  el: '#example',
  data: {
    name: 'Vue.js'
  },
  // define methods under the `methods` object
  methods: {
    greet: function (event) {
      // `this` inside methods point to the Vue instance
      alert('Hello ' + this.name + '!')
      // `event` is the native DOM event
      alert(event.target.tagName)
    }
  }
})
// you can invoke methods in JavaScript too
vm.greet() // -> 'Hello Vue.js!'