superrfjs/init.js

const scripts = [
  "rf.sheets.all.js",
  "rf.shapes.js",
  "rf.charts.js",
  "rf.slicers.js",
  "rf.print.js",
  "rf.barcode.js",
  "rf.pdf.js",
  "rf.pivottables.js",
  "rf.tablesheet.js",
  "rf.ganttsheet.js",
  "rf.formulapanel.js",
  "rf.reportsheet.js",
  "rf.io.js",
  "rf.excelio.js",
  "rf.cn.js",
  "rf.zh.js",
  "rf.designer.all.js",
];
//所有需要加载的css资源
const cssFiles = [
  "rf.designer.css",
  "rf.2013.css",
];

export let initGC = (document) => {
  return new Promise((resolve, reject) => {
    let flag = true;
    let meta = document.getElementsByTagName('meta');
    for (let index = 0; index < meta.length; index++) {
      const element = meta[index];
      if (element.name == 'loadEnd') {
        flag = false;
      }
    }
    if (flag) {
      // 定义一个异步函数，它接受两个参数：一个资源列表和一个加载器函数
      const loadResourcesInOrder = async (resources, loader) => {
        for (const resource of resources) {
          // 确保资源按照列表中的顺序依次加载
          await loader(resource, document);
        }
      };
      
      const loadScript = (script, document) => {
        return new Promise((resolve, reject) => {
          const s = document.createElement("script");
          s.src = `./${script}`;
          s.onload = resolve;
          s.onerror = reject;
          document.body.appendChild(s);
        });
      };
      
      const loadCSS = (cssFile, document) => {
        return new Promise((resolve, reject) => {
          const link = document.createElement("link");
          link.rel = "stylesheet";
          link.href = `./${cssFile}`;
          link.onload = resolve;
          link.onerror = reject;
          document.head.appendChild(link);
        });
      };
      
      loadResourcesInOrder(cssFiles, loadCSS);
      //动态引入js
      
      loadResourcesInOrder(scripts, loadScript)
          .then(() => {
            const meta = document.createElement("meta");
            meta.name = 'loadEnd';
            document.head.appendChild(meta)
            resolve("所有js脚本已加载完成");
          })
          .catch((error) => {
            reject("加载脚本时出错", error);
          });
    } else {
      resolve("脚本已加载过！！！");
    }
  })
};