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In order to improve development efficiency, HBuilderX encapsulates the common code of uni-app into code blocks starting with u. For example, enter ulist in the template tag and press Enter, the following code will be automatically generated:

<uni-list>
	<uni-list-item title="" note=""></uni-list-item>
	<uni-list-item title="" note=""></uni-list-item>
</uni-list>

Note: Make sure the uni-list component is saved in the components directory of the project. A simpler way is to select the uni-ui project template when creating a new project, and you can type all the code blocks starting with u in it. If your project is not a uni-ui project template, then you need to go to the plugin market to manually download uni ui components into the project.

Code blocks are divided into Tag code blocks and JS code blocks. If you enter uShowToast in the script tag and press Enter, the following code will be automatically generated:

uni.showToast({
	title: '',
	mask: false,
	duration: 1500
});

uni-app supports code blocks as listed below.

Tag code block

• uButton
• uCheckbox
• uGrid: grid, need to refer to uni ui
• uListMedia
• uRadio
• uSwiper
• ......

Almost all components, whether they are built-in components or uni-ui components, have been encapsulated as code blocks; use HBuilderX to open the .vue file in the uni-app project, and type in thetemplate area u, Code Assistant prompts for a list of all visible code blocks.

You can also view all supported code blocks in the left list of HBuilderX menu - Tools - Code Block Settings - Vue Code Blocks.

In addition to components, other common code blocks include:

• viewfor: generate a view code block with v-for loop structure
• vbase: generate a basic vue code structure

JS code block

uni api code block

• uRequest
• uGetLocation
• uShowToast
• uShowLoading
• uHideLoading
• uShowModal
• uShowActionSheet
• uNavigateTo
• uNavigateBack
• uRedirectTo
• uStartPullDownRefresh
• uStopPullDownRefresh
• uLogin
• uShare
• uPay
• ......

Almost all common js apis have been encapsulated as code blocks. Type u in the js code of HBuilderX, and the code assistant will prompt all visible lists. You can also view all of them in the left list of HBuilderX menu-tools-code block settings-js code block.

vue js code block

• ed：export default
• vData: output data(){return{}}
• vMethod: Output methods:{}
• vComponents: output components: {}

Other common js code blocks

• iff: simple if
• forr: for loop structure
• fori: for loop structure and contains i
• funn: function
• rt：return true
• clog: output: "console.log ()"
• clogvar: enhanced log output, which can print out the names of variables at the same time
• varcw: output: "var currentWebview = this.$scope.page.$getAppWebview()"
• ifios: platform judgment of iOS
• ifAndroid: platform judgment of Android

If the preset code block does not meet the requirements, you can customize the code block. Refer to the tutorial https://ask.dcloud.net.cn/article/35924