将羊驼导入React.js [英] Importing alpaca into React.js

问题描述

我正在尝试在React应用程序中使用Alpaca表单:

  import React，{useEffect，useRef}来自"react"；从"jquery"导入$；从"popper.js"导入*作为popper；从"bootstrap"导入*作为引导程序；从"handlebars"导入*作为handlebar；从羊驼"进口羊驼；var jp = require('jsonpath');导出默认函数Form(){useEffect(()=> {$(#form").alpaca({});}，[]);返回<>< h2>羊驼形</h2>< div id ="form"/></> ;;} 

webpack对此进行编译，但是在浏览器中我看到以下消息:

  jquery__WEBPACK_IMPORTED_MODULE_1 ___ default(...)(...).羊驼不是函数 

在运行"npm start"时，浏览器错误显示:ReferenceError:未定义jQuery.

解决方案

看起来我已经找到了在Spring Boor应用程序中有效的解决方案.首先，我创建一个仅具有一个功能的静态js脚本:

  function alpacaForm(tag，config){$(标签).alpaca(config);} 

然后，在所有Alpaca依赖项之后，将这个脚本包含在index.html中:

 <！-依赖项(jquery，handlebars和bootstrap)->< script type ="文本/javascript"src ="//code.jquery.com/jquery-1.11.1.min.js"</script>< script type ="文本/javascript"src ="//cdnjs.cloudflare.com/ajax/libs/handlebars.js/4.0.5/handlebars.min.js"</script>< link type =文本/css"href ="//maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css"rel ="stylesheet"/>< script type ="文本/javascript"src ="//maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"</script><！-羊驼->< link type =文本/css"href ="//cdn.jsdelivr.net/npm/alpaca@1.5.27/dist/alpaca/bootstrap/alpaca.min.css"rel ="stylesheet"/>< script type ="文本/javascript"src ="//cdn.jsdelivr.net/npm/alpaca@1.5.27/dist/alpaca/bootstrap/alpaca.min.js"</script>< script type ="文本/javascript"src =" ./js/alpacaForm.js"</script> 

然后我只在我的React应用程序中调用alpacaForm:

 导出默认函数Form(){useEffect(()=> {alpacaForm(#form"，{模式":{...}，选项":{...}});}，[]);返回<>< h2>羊驼形</h2>< div id ="form"/></> ;;} 

在此处查看源代码: https://gitlab.com/AlbertGevorgyan/bootreact

I am trying to use an Alpaca form within a React app:

import React, { useEffect, useRef } from "react";
import $ from "jquery";
import * as popper from "popper.js";
import * as bootstrap from "bootstrap";
import * as handlebars from "handlebars";
import alpaca from "alpaca";

var jp = require('jsonpath');

export default function Form() {
    useEffect(() => {
        $("#form").alpaca({
        });
    }, []);

    return <>
        <h2>Alpaca Form</h2>
        <div id="form"/>
    </>;
}

webpack compiles this but in the browser I see this message:

jquery__WEBPACK_IMPORTED_MODULE_1___default(...)(...).alpaca is not a function

While running "npm start", the browser error shows: ReferenceError: jQuery is not defined.

解决方案

Looks like I have found a solution that works in a Spring Boor application. First, I create a static js script with only one function:

function alpacaForm(tag, config) {
    $(tag).alpaca(config);
}

Then I include this script in index.html, following all Alpaca dependencies:

    <!-- dependencies (jquery, handlebars and bootstrap) -->
    <script type="text/javascript" src="//code.jquery.com/jquery-1.11.1.min.js"></script>
    <script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/handlebars.js/4.0.5/handlebars.min.js"></script>
    <link type="text/css" href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css" rel="stylesheet"/>
    <script type="text/javascript" src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>

    <!-- alpaca -->
    <link type="text/css" href="//cdn.jsdelivr.net/npm/alpaca@1.5.27/dist/alpaca/bootstrap/alpaca.min.css" rel="stylesheet"/>
    <script type="text/javascript" src="//cdn.jsdelivr.net/npm/alpaca@1.5.27/dist/alpaca/bootstrap/alpaca.min.js"></script>
    <script type="text/javascript" src="./js/alpacaForm.js"></script>

Then I just call alpacaForm in my React app:

export default function Form() {
    useEffect(() => {
        alpacaForm("#form", {
               "schema": {
                   ...
               },
               "options": {
                   ...
               }
           }
        );
    }, []);

    return <>
        <h2>Alpaca Form</h2>
        <div id="form"/>
    </>;
}

See the source code here: https://gitlab.com/AlbertGevorgyan/bootreact

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