Book Image

Vue.js Quick Start Guide

By : Ajdin Imsirovic
Book Image

Vue.js Quick Start Guide

By: Ajdin Imsirovic

Overview of this book

Vue.js is the latest trending frontend framework. Simplicity, reactivity, and ?exibility are some of the key benefits that Vue offers to developers. This book will help you learn everything you need to know to build stunning reactive web apps with Vue.js 2 quickly and easily. This book will take you through the Vue 2 framework. You will start by learning the different Vue installation options: CDN, NPM, and Vue CLI. Then we will look at the core concepts of Vue: templates and components – ways to modularize Vue code. You will learn how to utilize directives, which are Vue-specific HTML attributes with additional features. Also, you will see how Vue uses a streamlined approach to development, with reusable methods, computed properties, and watchers, and how it controls state with the help of its data option. You will learn about the concepts of reactive programming in Vue, and how to understand communication between parent and child components. We will take a look at props and slots, working with CSS, filters, and mixins. We will also look at ways to add transitions and animations to Vue apps. Then you will extend Vue by building custom directives and your own plugins. Finally, you will learn about Vuex – a Vue plugin that allows us to centralize state, and also introduce Nuxt, which is a framework that builds on top of Vue and solves some issues of single-page applications. After learning about these components, you will be ready to build your own reactive web apps with Vue.js 2.
Table of Contents (15 chapters)
Title Page
Copyright and Credits
Packt Upsell

Combining transition modes, duration, keys, and v-if

Transition modes are used when we want to smoothly remove one element from the screen and seamlessly replace it with another one. The default transition mode that the <transition> component comes with, without any tweaks needed, is the simultaneous transition: one element is removed at the same time that another is added. 

However, there are some transitions is which it would be better to have the new element appear, and only when this transition is complete does the old element get removed. This transition mode is referred to as the in-out transition mode. To add it, we simply use the custom mode HTML attribute, and give it the value of in-out, like this:

<transition mode="in-out">

Alternatively, we might want to use the out-in transition mode, where we first have the old element transition out, and only then, when the transition is complete, the new element transitions in.

Let's see this in practice. The example is available...