## Vue 构造函数整理-全局API

这里是对 `Vue` 构造函数全局API(静态属性和方法)的整理，便于看源码时查看方法的对应位置。

```js
// initGlobalAPI
Vue.config
Vue.util = {
	warn,
	extend,
	mergeOptions,
	defineReactive
}
Vue.set = set
Vue.delete = del
Vue.nextTick = nextTick
Vue.options = {
	components: {
		KeepAlive
	},
	directives: Object.create(null),
	filters: Object.create(null),
	_base: Vue
}

// initUse ***************** global-api/use.js
Vue.use = function (plugin: Function | Object) {}

// initMixin ***************** global-api/mixin.js
Vue.mixin = function (mixin: Object) {}

// initExtend ***************** global-api/extend.js
Vue.cid = 0
Vue.extend = function (extendOptions: Object): Function {}

// initAssetRegisters ***************** global-api/assets.js
Vue.component =
Vue.directive =
Vue.filter = function (
  id: string,
  definition: Function | Object
): Function | Object | void {}

Vue.version = '__VERSION__'
```