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Author: yyx990803

source/_posts/011-component.md

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 The release of 0.11 introduced [many changes](https://github.com/yyx990803/vue/blob/master/changes.md), but the most important one is how the new component scope works. Previously in 0.10.x, components have inherited scope by default. That means in a child component template you can reference parent scope properties. This often leads to tightly-coupled components, where a child component assumes knowledge of what properties are present in the parent scope. It is also possible to accidentally refer to a parent scope property in a child component.
 
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 ### Isolated Scope and Data Passing
 
 Starting in 0.11, all child components have isolated scope by default, and the recommended way to control component data access is via [Explicit Data Passing](/guide/components.html#Explicit_Data_Passing) using [`v-with`](/api/directives.html#v-with) or [`paramAttributes`](/api/options.html#paramAttributes).