Vue.js 1.0.0 RC2 发布，轻量级 JavaScript 框架

发布于 2015-10-23 03:51:59 | 116 次阅读 | 评论: 0 | 来源: 网友投递

Vue.js 是构建 Web 界面的 JavaScript 库，提供数据驱动的组件，还有简单灵活的 API，使得 MVVM 更简单。

Vue.js 1.0.0 RC2 发布，更新如下：

v-for now support the v-for="(key, val) in obj" or v-for="(index, val) in arr" syntax. This allows nested loops to more easily reference the key or index.
v-on can now omit the expression if it has modifiers. e.g. @submit.prevent will call preventDefault() on submit events.
Custom directive API improvement:

Custom directives can now provide a params Array, and the Vue compiler will automatically extract these attributes on the element that the directive is bound to. The old undocumented this.param() directive instance method has been deprecated.

Example:
```
<div v-example a="hi"></div>
```
```
Vue.directive('example', {
  params: ['a'],  bind: function () {    console.log(this.params.a) // -> "hi"
  }
})
```
This API also supports dynamic attributes. The this.params[key] value is automatically kept up-to-date. In addition, you can specify a callback when the value has changed:
```
<div v-example :a="someValue"></div>
```
```
Vue.directive('example', {
  params: ['a'],
  paramWatchers: {    a: function (val, oldVal) {      console.log('a changed!')
    }
  }
})
```

下载页面：1.0.0-rc.2

Vue.js 是构建 Web 界面的 JavaScript 库，提供数据驱动的组件，还有简单灵活的 API，使得 MVVM 更简单。

主要特性：

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