【Javascript】Inline Worker

FunctionWorker.js

/**
 * usage
 *
 * const worker = new FunctionWorker(() => {
 *   self.onmessage = (e) => {
 *     postMessage(e);
 *   }
 * });
 *
 */

class FunctionWorker extends Worker {
  constructor(src) {
    const str = src.toString()
      .replace(/^.*{.*/, "")
      .replace(/.*\}$/, "")
      .replace(/^\n\s*/, "")
      .replace(/\n$/, "");

    const blobUrl = window.URL.createObjectURL(new Blob([str]));

    super(blobUrl);
  }
}