Category: Vue

Sometimes, we want to update an entire array with Vuex.

In this article, we’ll look at how to update an entire array with Vuex.

How to update an entire array with Vuex?

To update an entire array with Vuex, we can use the Vue.set method.

For instance, we write

import Vuex from "vuex";
const store = new Vuex.Store({
  state: {
    items: [],
  },
  mutations: {
    MUTATE_ITEMS: (state, items) => {
      Vue.set(state, "items", [...items]);
    },
  },
  actions: {
    loadItems: (context, items) => {
      context.commit("MUTATE_ITEMS", items);
    },
  },
});

to add the MUTATE_ITEMS mutation method that calls Vue.set with state, the property in state to update, and the new value for state.items.

Using Vue.set will trigger reactivity in Vue, so all the components that listens for the store state will re-render if the values it’s watching have changed.

Conclusion

To update an entire array with Vuex, we can use the Vue.set method.

Sometimes, we want to smoothly animate v-show in Vue.js.

In this article, we’ll look at how to smoothly animate v-show in Vue.js.

How to smoothly animate v-show in Vue.js?

To smoothly animate v-show in Vue.js, we can use the transition component.

For instance, we write

<template>
  <div>
    <transition name="fade" mode="out-in">
      <div key="3" v-if="show">
        <div class="box yellow"></div>
      </div>
      <div key="1" v-if="!show">
        <div class="box blue"></div>
      </div>
    </transition>
  </div>
</template>

to add the transition component to 2 divs.

We set the name of the transition effect to get the effects to apply from the CSS styles of the classes that have name as the prefix.

We put the elements we want to animate inside.

And we add v-if to each to render the elements conditionally.

Since they’re in the transition component, we see the animation effect applied when we transition between the elements inside.

Conclusion

To smoothly animate v-show in Vue.js, we can use the transition component.

Sometimes, we want to redirect to the default path with Vue Router.

In this article, we’ll look at how to redirect to the default path with Vue Router.

How to redirect to the default path with Vue Router?

To redirect to the default path with Vue Router, we can redirect / to the route we want.

For instance, we write

import Vue from "vue";
import VueRouter from "vue-router";

Vue.use(VueRouter);

import Home from "../components/home/container";
import LiveAgent from "../components/live_agent/container";
//...

const routes = [
  {
    path: "/",
    redirect: "/home",
  },
  {
    component: Home,
    name: "home",
    path: "/home",
  },
  {
    component: LiveAgent,
    name: "liveAgent",
    path: "/live-agent",
  },
  //...
];

export default new VueRouter({
  routes,
});

to add redirect to redirect / to /home.

Then if we go to /, we see the /home route loaded.

Conclusion

To redirect to the default path with Vue Router, we can redirect / to the route we want.

Sometimes, we want to change the default width of a Vuetify data table cell.

In this article, we’ll look at how to change the default width of a Vuetify data table cell.

How to change the default width of a Vuetify data table cell?

To change the default width of a Vuetify data table cell, we can set the headers prop to an array with the column widths.

For instance, we write

<template>
  <div>
    <v-data-table :headers="headers" :items="desserts"> </v-data-table>
  </div>
</template>

<script>
export default {
  //...
  data() {
    return {
      headers: [
        { text: "Dessert (100g serving)", value: "name", width: "20%" },
        { text: "Calories", value: "calories", width: "50%" },
        { text: "Fat (g)", value: "fat" },
        { text: "Carbs (g)", value: "carbs", width: "200px" },
      ],
    };
  },
  //...
};
</script>

to add the v-data-table component with the headers prop to set the table headers data.

We set the headers prop to the headers array.

In the headers entries, we set the width property to set the width of each column.

Conclusion

To change the default width of a Vuetify data table cell, we can set the headers prop to an array with the column widths.

Sometimes, we want to trigger event after component has been rendered in Vue.js.

In this article, we’ll look at how to trigger event after component has been rendered in Vue.js.

How to trigger event after component has been rendered in Vue.js?

To trigger event after component has been rendered in Vue.js, we can call this.$emit in the mounted hook.

For instance, we write

<script>
export default {
  //...
  mounted() {
    this.$emit("loaded");
  },
  //...
};
</script>

to emit the loaded event in the mounted hook with this.$emit.

Conclusion

To trigger event after component has been rendered in Vue.js, we can call this.$emit in the mounted hook.