Check out example codes for "v-bind". It will help you in understanding the concepts better.

Code Example 1

<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.

Code Example 2

<div v-bind:style="{ color: activeColor, fontSize: fontSize + 'px' }"></div>

Code Example 3

<div v-bind:class="{ active: isActive }"></div>

Learn ReactJs, React Native from akashmittal.com