'v-bind' directives require an attribute value. code example

Example 1: vue js data bind

// with v=bind
 <p><a v-bind:href="website">Text goes here fo the link </a> </p> 

//or with :
 <p><a :href="website">Text goes here fo the link </a> </p>

//website is variable/property with link in a Vue instance

Example 2: v-bind

<div v-bind:class="{ active: isActive }"></div>
The above syntax means the presence of the active class will be determined by the truthiness of the data property isActive.