dynamic-loading-script/dist/index.mjs

Dynamic script loading.

// index.ts
function dynamic_loading_script_default(url, option) {
  return new Promise((resolve, reject) => {
    const { variableName, timeout, callback, jsonpCallbackName } = option;
    let timer;
    let script;
    if (typeof url === "string") {
      if (!variableName) {
        reject(new Error("variableName\u4E0D\u80FD\u4E3A\u7A7A"));
        return;
      }
      if (window[variableName]) {
        callback && callback(window[variableName]);
        resolve(window[variableName]);
        return;
      }
      if (jsonpCallbackName) {
        window[jsonpCallbackName] = () => {
          resolve(window[variableName]);
          delete window[jsonpCallbackName];
          timer && clearTimeout(timer);
          callback && callback(window[variableName]);
        };
      }
      if (timeout !== false) {
        timer = window.setTimeout(() => {
          if (!window[variableName]) {
            script.onload = null;
            script.onerror = null;
            document.body.removeChild(script);
            reject(new Error("\u52A0\u8F7D\u8D85\u65F6"));
          }
        }, timeout || 1e4);
      }
      script = document.createElement("script");
      script.src = url;
      script.type = "text/javascript";
      script.onload = () => {
        if (jsonpCallbackName)
          return;
        timer && clearTimeout(timer);
        callback && callback(window[variableName]);
        resolve(window[variableName]);
      };
      script.onerror = () => {
        timer && clearTimeout(timer);
        reject(new Error("\u52A0\u8F7D\u5931\u8D25"));
      };
      document.head.appendChild(script);
    } else {
      throw new Error("url\u7C7B\u578B\u4E0D\u6B63\u786E");
    }
  });
}
export {
  dynamic_loading_script_default as default
};
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