angularjs 延迟更新和angularjsUI

angularjsUI库
https://material.angularjs.org/latest/

             ng-model-options="{ updateOn: 'blur' }"

options to apply to the current model. Valid keys are:

• updateOn: string specifying which event should the input be bound to. You can set several events using an space delimited list. There is a special event called default that matches the default events belonging of the control.
• debounce: integer value which contains the debounce model update value in milliseconds. A value of 0 triggers an immediate update. If an object is supplied instead, you can specify a custom value for each event. For example:ng-model-options="{ updateOn: 'default blur', debounce: { 'default': 500, 'blur': 0 } }"
• allowInvalid: boolean value which indicates that the model can be set with values that did not validate correctly instead of the default behavior of setting the model to undefined.
• getterSetter: boolean value which determines whether or not to treat functions bound to ngModel as getters/setters.
• timezone: Defines the timezone to be used to read/write the Date instance in the model for<input type="date">, <input type="time">, ... . It understands UTC/GMT and the continental US time zone abbreviations, but for general use, use a time zone offset, for example, '+0430' (4 hours, 30 minutes east of the Greenwich meridian) If not specified, the timezone of the browser will be used.

<div ng-controller="ExampleController">
  <form name="userForm">
    <label>Name:
      <input type="text" name="userName"
             ng-model="user.name"
             ng-model-options="{ updateOn: 'blur' }"
             ng-keyup="cancel($event)" />
    </label><br />
    <label>Other data:
      <input type="text" ng-model="user.data" />
    </label><br />
  </form>
  <pre>user.name = <span ng-bind="user.name"></span></pre>
</div>