ChangeDetectionStrategy

enum

默认变更检测器用来检测更改的策略。设置后，将在下次触发变更检测时生效。

The strategy that the default change detector uses to detect changes. When set, takes effect the next time change detection is triggered.

参见

Change detection usage 变更检测的用法

      
      enum ChangeDetectionStrategy {
  OnPush: 0
  Default: 1
}

成员列表

成员说明

成员	说明
`OnPush: 0`	使用 `CheckOnce` 策略，这意味着把此策略设置为 `Default`（ `CheckAlways` ）将禁用自动变更检测，直到重新激活。变更检测仍然可以显式调用。此策略适用于所有子指令，并且不能被覆盖。 Use the `CheckOnce` strategy, meaning that automatic change detection is deactivated until reactivated by setting the strategy to `Default` (`CheckAlways`). Change detection can still be explicitly invoked. This strategy applies to all child directives and cannot be overridden.
`Default: 1`	使用默认的 `CheckAlways` 策略，在该策略中，变更检测将自动执行，直到显式停用为止。 Use the default `CheckAlways` strategy, in which change detection is automatic until explicitly deactivated.

OnPush: 0

使用 CheckOnce 策略，这意味着把此策略设置为 Default（ CheckAlways ）将禁用自动变更检测，直到重新激活。变更检测仍然可以显式调用。此策略适用于所有子指令，并且不能被覆盖。

Use the CheckOnce strategy, meaning that automatic change detection is deactivated until reactivated by setting the strategy to Default (CheckAlways). Change detection can still be explicitly invoked. This strategy applies to all child directives and cannot be overridden.

Default: 1

使用默认的 CheckAlways 策略，在该策略中，变更检测将自动执行，直到显式停用为止。

Use the default CheckAlways strategy, in which change detection is automatic until explicitly deactivated.

参见link

成员列表link

参见

成员列表