This is from angular document: https://angular.io/guide/form-validation When the user blurs the form control element, the control is marked as "touched"

I want to ask what does it mean by "blur"?

CodePudding user response：

It is an event that is fired off when an element has lost focus. More details here.

This happens when you interact with an element, and then click or tab somewhere else and the element "loses" focus.