To validate a future date in a date picker in Vue.js, you can use a combination of the v-model directive and a custom validation method.

Here’s an example:

In this example, we use the v-model directive to bind the selected date to the selectedDate data property. We also define a dateError property to keep track of whether the selected date is valid.

To validate a future date in a date picker in Vue.js

We then define a validateDate method that is called whenever the date picker’s input event is triggered. This method creates today and selected date objects and compares them. If the selected date is earlier than today, we set dateError to true. Otherwise, we set dateError to false.

Finally, we use a v-if directive to conditionally render an error message if dateError is true.

With this setup, the date picker will only allow selection of future dates and display an error message if a past date is selected.