问题描述
经过数小时的实验和阅读，我仍然不明白为什么 myTemplate.onRendered(function() {...}) 只被调用一次.
After many hours of experimentation and reading I still don't understand why myTemplate.onRendered(function() {...}) is only called once.
根据您阅读的位置，您会获得不同的信息，但显然每次内部 HTML 更改时都应该调用它 - 在我的实验中不会发生这种情况，它只被调用一次，无论我做什么都不会再调用.
Depending on where you read you get different information but it should apparently get called every time the inner HTML changes - that does not happen in my experiments it is only called once and never again no matter what I do.
响应式依赖似乎也没有让它被调用(例如在 onRendered 回调中使用 Meteor.user()).
Reactive dependencies do not seem to make it get called either (e.g. using Meteor.user() inside the onRendered callback).
推荐答案
onRendered 仅在模板的第一次渲染时执行，它不是响应式的.要使用与 Template 关联的反应式计算，您应该使用 模板助手 或 template.autorun.
onRendered is only executed on the first render of the template and it is not reactive. To use reactive computations associated with a Template you should use template helpers or template.autorun.
您似乎也遇到了XY 问题，请尝试提出不同的问题对您的功能提出问题.
It also seems you have an XY problem, try asking a different question with your feature in mind.
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