@orca-fe/pocket/es/load-script/LoadScript.js

UI components by orca-team

var cache = new Map();
export default function loadScript(src, callback = e => {}) {
  var p = cache.get(src);
  if (!p) {
    p = new Promise((resolve, reject) => {
      var script = document.createElement('script');
      script.src = src;
      script.onload = function (e) {
        resolve(e);
      };
      script.onerror = function (event, source, lineno, colno, error) {
        cache.delete(src);
        reject(error);
      };
      document.body.appendChild(script);
    });
    cache.set(src, p);
  }
  return p.then(() => {
    callback();
  }).catch(err => {
    callback(err);
  });
}