It does not change the data in database but it shows the new data in developer tools

It does not change the data in database but it shows the new data in developer tools

How can I update data in vue.js?

I am new to vue.js and I try to update data. I write this code for pencil icon

How can I delete a holiday from a person in vue.js?

I am new to vue.js and I make a project with vue.js and django I write this code in vue.js