What is the difference between v-show and v-if in Vue.js?

What is the difference between v-show and v-if in Vue.js?

In Vue.js, v-if conditionally renders elements based on a boolean expression, while v-show toggles the visibility of an element without removing it from the DOM.

Can you give me an example of when to use v-if instead of v-show?

Sure! Use v-if when you want to conditionally render an element that is expensive to create, like a complex component. Use v-show for elements that toggle frequently, as it’s more efficient for visibility.

Are there any performance implications of using v-show?

Yes, v-show keeps the element in the DOM and only toggles its CSS display property, which can be more efficient for frequent toggling. However, if the element is not needed, v-if is better as it removes the element from the DOM.

What about using both v-if and v-show together?

Using both together can be useful, but it’s important to understand their roles. Typically, you would use v-if for the parent element and v-show for child elements that need to toggle visibility.