使用AngularJS，我可以使用ng-pristine或ng-dirty来检测用户是否已输入字段。但是，我想在用户离开字段区域后才进行客户端验证。这是因为当用户输入电子邮件或电话等字段时，他们总是会收到一个错误，直到他们完成输出完整的电子邮件，这不是一个最佳的用户体验。
更新：
Angular现在附带一个自定义模糊事件：
https://docs.angularjs.org/api/ng/directive/ngBlur
https://docs.angularjs.org/guide/forms#custom-triggers和https://docs.angularjs.org/guide/forms#non-immediate-debounced-model-updates
By default,any change to the content will trigger a model update and
form validation. You can override this behavior using the
ngModelOptions directive to bind only to specified list of events.
I.e. ng-model-options=”{ updateOn: ‘blur’ }” will update and validate
only after the control loses focus. You can set several events using a
space delimited list. I.e. ng-model-options=”{ updateOn: ‘mousedown
blur’ }”
和去抖
You can delay the model update/validation by using the debounce key
with the ngModelOptions directive. This delay will also apply to
parsers,validators and model flags like $dirty or $pristine.I.e. ng-model-options=”{ debounce: 500 }” will wait for half a second since the last content change before triggering the model update and form validation.
