How to create a Vue component library from scratch and publish it to npm

How to create a Vue component library from scratch and publish it to npm? The following article will guide you step by step in developing a Vue component library from scratch and see how to publish it to npm. I hope it will be helpful to you.

1. Create a new folder, open it in the terminal and execute npm init -y

Generate package.json as follows. Note that if you want to publish it to npm, the name cannot have underscores, capital letters, etc.

{
  "name": "vuecomponentdi",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC"
}

2. Create a directory structure

The directory structure is as follows

-- vueComponentDi
    -- packages
        -- button
            -- index.js
            -- index.vue
        -- toast
            -- index.js
            -- index.vue
    -- index.js
    -- package.json

3. Local debugging

• vueComponentDi/index.js

export default function(){
    console.log('本地调试')
}

• Create a new vue project

vue create testvue

Add vueComponentDi/ to the test dependencies devDependencies under package.json under testvue index.js absolute address

"devDependencies": {
    ...
    "vuecomponentdi": "F:/vueComponent@Di/vueComponentDi",//根据自己实际项目地址填写
    ...
    }

• Execute npm link

Execute npm link in testvue to soft link vuecomponentdi to node_modules

• vuecomponentdi Install Eslint

Since testvue introduces components, Eslint detection will be performed, and an error will be reported if it is not installed (testvue can omit this step by closing Eslint)

Installation method:

 npm install eslint@6.7.2 --save-dev
 ./node_modules/.bin/eslint --init

• Use vuecomponentdi in testvue

import test from "vuecomponentdi"

<template>
  <div class="home">
    <img src="/static/imghwm/default1.png"  data-src="../assets/logo.png"  class="lazy"  alt="Vue logo" >
    <HelloWorld msg="Welcome to Your Vue.js App"/>
  </div>
</template>

<script>
// @ is an alias to /src
import HelloWorld from &#39;@/components/HelloWorld.vue&#39;
import test from "vuecomponentdi"
export default {
  name: &#39;Home&#39;,
  components: {
    HelloWorld
  },
  created(){
    test()
  }
}
</script>

Console Print>Local debugging

4. Develop a button component

• button模块:进入vueComponentDi/packages/button/index.vue

type只支持传入primary属性,v-on="$listeners"表示包含了父作用域中的 (不含 .native 修饰器的) v-on 事件监听器。它可以通过 v-on="$listeners" 传入内部组件

<template>
    <div>
        <button class="di-button"  v-on="$listeners" :class="[type?`di-button--${type}`:&#39;&#39;]"><slot></slot></button>
    </div>
</template>
<script>
export default {
    name:"di-button",
    props:{
        type:String
    }
}
</script>
<style>
.di-button{
    display: inline-block;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    background: #fff;
    border: 1px solid #dcdfe6;
    color: #606266;
    -webkit-appearance: none;
    text-align: center;
    box-sizing: border-box;
    outline: none;
    margin: 0;
    transition: .1s;
    font-weight: 500;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    padding: 12px 20px;
    font-size: 14px;
    border-radius: 4px;
}
.di-button:focus, .di-button:hover {
    color: #409eff;
    border-color: #c6e2ff;
    background-color: #ecf5ff;
}
.di-button:active {
    color: #3a8ee6;
    border-color: #3a8ee6;
    outline: none;
}
.di-button--primary {
    color: #fff;
    background-color: #409eff;
    border-color: #409eff;
}
.di-button--primary:focus, .di-button--primary:hover {
    background: #66b1ff;
    border-color: #66b1ff;
    color: #fff;
}
.di-button--primary.is-active, .di-button--primary:active {
    background: #3a8ee6;
    border-color: #3a8ee6;
    color: #fff;
}
</style>

• button模块导出:进入vueComponentDi/packages/button/index.js

如果导出一个带有install函数的对象,则在Vue2中可以直接使用Vue.use(xx)调用此函数,既执行 Vue.component(name,option)创建了一个组件

import button from "./index.vue"
button.install=(Vue)=>{
    Vue.component(button.name,button)
}
export default button

• 聚合导出button:进入vueComponentDi/index.js

因为开发的组件不止一个,所以需要在入口文件统一导出

import diButton from "./packages/button"
export {
    diButton
}

• 在testvue使用

<template>
  <div class="home">
    <di-button type="primary">按钮</di-button>
  </div>
</template>
<script>
// @ is an alias to /src

import Vue from &#39;vue&#39;
import {diButton} from "vuecomponentdi"
Vue.use(diButton)
export default {
  name: &#39;Home&#39;
}
</script>

5、开发一个toast弹窗

• toast模块:vueComponentDi/packages/toast/index.vue

type只支持warning和success

<template>
    <div class="di-toast" :class="`di-toast--${type}`" v-if="show">
        {{message}}
    </div>
</template>
<script>
export default {
    data(){
        return {
            message:&#39;&#39;,
            show:false,
            type:&#39;&#39;
        }
    }
}
</script>
<style>
.di-toast{
    width: 60%;
    width: 200px;
    background: rgb(15, 15, 15);
    padding:3px;
    text-align: center;
    color: #fff;
    border-radius: 10px;
    position: fixed;
    left: calc(50% - 100px);
    top: 200px;
}
.di-toast--warning{
    background: #FDF6EC;
    color: #E6A28B;
}
.di-toast--success{
    background: #F0F9EB;
    color: #93C26D;
}
</style>

• toast模块导出:vueComponentDi/packages/toast/index.js

因为toast弹窗需要在vue中支持this.$toast调用,所以用了Vue.extend方法,这个 API 在日常开发中很少使用,一般在开发组件的时候它才能派上用场,官方定义:使用基础 Vue 构造器，创建一个“子类”。参数是一个包含组件选项的对象

import toast from './index.vue'
toast.install = (Vue) => {
    const toastConstructor = Vue.extend(toast);//使用基础 Vue 构造器，创建一个“子类”。参数是一个包含组件选项的对象。
    let $vm = new toastConstructor();//将这个子类实例化
    let $el = $vm.$mount().$el;//$vm执行$mount()手动挂载会返回一个带有$el的对象,$el就是一个dom对象
    document.querySelector("body").appendChild($el);//将这个dom对象添加到body中
    //在Vue原型上注入$toast方法
    Vue.prototype.$toast = (option) => {
        $vm.show = true
        if (!(option instanceof Object)) {
            //如果传的不是对象直接弹出
            $vm.message = option
        } else {
            $vm.message = option.message
            $vm.type = option.type
        }
        setTimeout(() => {
            $vm.show = false
        }, 2000)
    }
}


export default toast

• 聚合导出:vueComponentDi/index.js

import diButton from "./packages/button" 
import toast from "./packages/toast" 

export {
    diButton,
    toast
}

• vuetest中使用toast

<template>
  <div class="home">
    <di-button type="primary" @click="toast">按钮</di-button>
  </div>
</template>
<script>
// @ is an alias to /src

import Vue from "vue";
import { diButton, toast } from "vuecomponentdi";
Vue.use(diButton);
Vue.use(toast);
export default {
  name: "Home",
  methods: {
    toast() {
      // this.toast("这是一个普通弹窗");
      // this.$toast({
      //   message: "这是一个成功弹窗",
      //   type: "success",
      // });
      this.$toast({
        message: "这是一个警告弹窗",
        type: "warning",
      });
    },
  },
};
</script>

6、发布到npm

• 公有配置

组件开发完成需要发布到npm以便于别人使用;因为发布的是公有包,所以需要在vueComponentDi/package.json中配置

"publishConfig": {
    "access": "public"
  },

完整package.json:

{
  "name": "vuecomponentdi",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "eslint": "^6.7.2",
    "eslint-plugin-vue": "^8.2.0"
  },
  "publishConfig": {
    "access": "public"
  }
}

• 发布

npm发布很简单,只需要两个命令:

npm login
npm publish

执行npm login需要你有npm账号，可以到 npm官网 注册

npm官网地址：https://www.npmjs.com/

发布完成之后就可以在任何一个vue2项目中安装使用了:

npm install vuecomponentdi

git地址: vue组件开发（https://gitee.com/geeksdidi/vue-component-di）

【相关推荐：vue.js教程】

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