VueJS – Introduction

VueJS - Introduction

Vue is a JavaScript framework for building user interfaces in VueJS introduction. Its core part is focused mainly on the view layer and it is very easy to understand. The version of Vue that we are going to use in this tutorial is 2.0 of VueJS introduction.

As Vue is basically built for frontend development, we are going to deal with lot of HTML, JavaScript and CSS files in the upcoming chapters. To understand the details, let us start with a simple example.

In this example, we are going to use the development verison of vuejs.

Example

<html>
   <head>
      <title>VueJs Introduction</title>
      <script type = "text/javascript" src = "js/vue.js"></script>
   </head>
   <body>
      <div id = "intro" style = "text-align:center;">
         <h1>{{ message }}</h1>
      </div>
      <script type = "text/javascript">
         var vue_det = new Vue({
            el: '#intro',
            data: {
               message: 'My first VueJS Task'
            }
         });
      </script>
   </body>
</html>

Output

VueJS - Introduction

This is the first app we have created using VueJS. As seen in the above code, we have included vue.js at the start of the .html file.

<script type = "text/javascript" src = "js/vue.js"></script>

There is a div which is added in the body that prints “My first VueJS Task” in the browser.

<div id = "intro" style = "text-align:center;">
   <h1>{{ message }}</h1>
</div>

We have also added a message in a interpolation, i.e. {{}}. This interacts with VueJS and prints the data in the browser. To get the value of the message in the DOM, we are creating an instance of vuejs as follows −

var vue_det = new Vue({
   el: '#intro',
   data: {
      message: 'My first VueJS Task'
   }
})

In the above code snippet, we are calling Vue instance, which takes the id of the DOM element i.e. e1:’#intro’, it is the id of the div. There is data with the message which is assigned the value ‘My first VueJS Task’. VueJS interacts with DOM and changes the value in the DOM {{message}} with ’My first VueJS Task’.

If we happen to change the value of the message in the console, the same will be reflected in the browser. For example −

VueJS - Introduction

Console Details

VueJS - Introduction

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