I have just found the great solution that works for me. const getDefaultState = () => { return { items: [], status: ’empty’ } } // initial state const state = getDefaultState() const actions = { resetCartState ({ commit }) { commit(‘resetState’) }, addItem ({ state, commit }, item) { /* … */ } } … Read more
From the data() method, you can reference the component’s properties using this. So in your case: data: function() { var theData = { somevar: this.messageId, // other object attributes } return theData; }
As simple as: <template> <div id=”app”> <img src=”./assets/logo.png”> </div> </template> <script> export default { } </script> <style lang=”css”> </style> Taken from the project generated by vue cli. If you want to use your image as a module, do not forget to bind data to your Vuejs component: <template> <div id=”app”> <img :src=”image”/> </div> </template> <script> … Read more
In my child component, there are no buttons to emit changed data. It’s a form with somewhat 5~10 inputs. the data will be submitted once you click the process button in another component. so, I can’t emit every property when it’s changing. So, what I did, In my parent component, I can access child’s data … Read more
You can use a navigation guard with the router definition: import Vue from ‘vue’; const DEFAULT_TITLE = ‘Some Default Title’; router.afterEach((to, from) => { // Use next tick to handle router history correctly // see: https://github.com/vuejs/vue-router/issues/914#issuecomment-384477609 Vue.nextTick(() => { document.title = to.meta.title || DEFAULT_TITLE; }); }); You’ll need to change your export to: const router … Read more
$mount allows you to explicitly mount the Vue instance when you need to. This means that you can delay the mounting of your vue instance until a particular element exists in your page or some async process has finished, which can be particularly useful when adding vue to legacy apps which inject elements into the … Read more
Update: April-2020 For people who are using Vue 3, the watch API can accept multiple sources import { watch, ref } from ‘vue’; export default { setup(() => { const a = ref(1), b = ref(‘hello’); watch([a, b], ([newA, newB], [prevA, prevB]) => { // do whatever you want }); }); }; Original answer for … Read more
If you’re using a component within a component (e.g. something like this in the Vue DOM): App MyComponent ADifferentComponent MyComponent Here the issue is that MyComponent is both the parent and child of itself. This throws Vue into a loop, with each component depending on the other. There’s a few solutions to this: 1. Globally … Read more
I have created a filter. The filter can be used in any page. Vue.filter(‘toCurrency’, function (value) { if (typeof value !== “number”) { return value; } var formatter = new Intl.NumberFormat(‘en-US’, { style: ‘currency’, currency: ‘USD’ }); return formatter.format(value); }); Then I can use this filter like this: <td class=”text-right”> {{ invoice.fees | toCurrency }} … Read more
Declare an index variable: <div v-for=”(item, index) in items” :key=”item.name”> </div> Demo: new Vue({ el: ‘#app’, data: { items: [{name: ‘a’}, {name: ‘b’}] } }) <script src=”https://unpkg.com/vue”></script> <div id=”app”> <div v-for=”(item, index) in items” :key=”item.name”> {{ index }}: {{ item.name }} </div> </div> Official docs section – Mapping an Array to Elements with v-for (emphasis … Read more