官术网_书友最值得收藏!

VueJS devtools

Being able to accurately debug our application is an important part of our development workflow. In the previous chapter, we installed the VueJS devtools, and we'll be looking at using it in more detail within this section. Let's make a playground project:

# New project
vue init webpack-simple vue-devtools

# Change directory
cd vue-devtools

# Install dependencies
npm install

# Run application
npm run dev

We can then open up our developer console and navigate to the Vue tab. When we select App from within the components list, we can see the data object(s) and other information for this component. By default, we have the msg variable that we're then binding to within our template, and we can see this within our developer tools:

Inspecting a Vue instance

This goes both ways though - we could access the objects inside of this Vue instance with $vm0.$data, scoping this to msg. To view this within the console, selecting <Root> then <App> will display the msg0;within the console. We can change this value and as Vue is watching the value, it will automatically change on screen:

Editing Vue instance data from the console

Notice how our message has changed to "Hello Vue Devtools!"; if we had multiple Vue instances, there would be other prefixed versions of Vue with $vm1, $vm2, and so on. Later in the book when we come to using Vuex, we'll be using this often. Next, let's take a look at how we can integrate TypeScript into our Vue projects. This is useful for those with an Angular background or anyone that's looking to take advantage of static typing.

主站蜘蛛池模板: 醴陵市| 喜德县| 海林市| 小金县| 林周县| 昌都县| 溧水县| 本溪市| 连山| 天门市| 青岛市| 黄大仙区| 清远市| 威海市| 翼城县| 惠来县| 望谟县| 大洼县| 罗山县| 清新县| 福泉市| 阿拉善左旗| 贡嘎县| 安新县| 比如县| 化隆| 彰化市| 景东| 商洛市| 嘉峪关市| 朔州市| 东台市| 台前县| 永州市| 武宁县| 金寨县| 渑池县| 和平区| 拉萨市| 怀仁县| 同心县|