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computed 和 watch 不会在自定义组件或页面卸载时自动移除监听吗? #106

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@lixilin322

在写业务逻辑时,发现computedwatch 并不会在自定义组件或页面卸载时自动移除监听,如果watch内部使用了this,也就是当前组件实例或页面实例,则该实例不会被释放,如果多次进入同一页面,watch监听会重复绑定多个,严重影响性能和业务逻辑。

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