Add a "download all" button to easily download all EOBs on mymoda.com. Names each PDF file according to service dates and providers.

moda_download_all_eobs.js

(() => {
  class LibLoader {
    constructor() {
      const el = this.el = document.createElement('pre');
      this.b = document.getElementsByTagName('body')[0];
      this.otherjQuery = false;

      el.style.position = 'fixed';
      el.style.top = '0';
      el.style.padding = '5px 10px';
      el.style.zIndex = 9001;
      el.style.fontSize = '12px';
      el.style.color = '#222';
      el.style.backgroundColor = '#f99';
    }

    showMsg(msg) {
      if (!document.body.contains(this.el))
        this.b.appendChild(this.el);
      this.el.appendChild( document.createTextNode(`${msg}\n`) );
      window.setTimeout(() => {
        if (document.body.contains(this.el))
          this.b.removeChild(this.el);
      }, 3000);
    }

    getScript(url, success) {
      const script = document.createElement('script');
      script.src = url;
      const head = document.getElementsByTagName('head')[0];
      let done = false;
      script.onload = script.onreadystatechange = function () {
        if (!done && (!this.readyState || this.readyState == 'loaded' || this.readyState == 'complete')) {
          done = true;
          success();
          script.onload = script.onreadystatechange = null;
          head.removeChild(script);
        }
      };
      head.appendChild(script);
    }

    loadLib(name, check, getVersion, uri) {
      return new Promise((resolve, reject) => {
        if (check()) {
          const msg = `This page already using ${name} v${getVersion()}`;
          this.showMsg( msg );
          resolve( msg );
        }
        else {
          this.getScript( uri, () => {
            const ok = check();
            const msg = ok 
              ? `This page is now has library ${name} with v${getVersion()}`
              : `Sorry, but ${name} wasn\'t able to load`;
            this.showMsg( msg );
            if (ok)
              resolve(msg);
            else
              reject(msg);
          })
        }
      })
    }

    async injectLibs(libs) {
      return await Promise.all(
        Object.entries(libs).map( ([name, {check, getVersion, uri}]) =>
          this.loadLib( name, check, getVersion, uri )
        )
      );
    }

    loadLibs(libs) {
      libs.forEach( (load) => load() )
    }
  }

  async function makeDownloadLinks() {
    const loader = new LibLoader();
    const libs = {
      jQuery: {
        check:      () => (typeof $ == 'function'),
        getVersion: () => (
          `${jQuery.fn.jquery}${loader.otherjQuery ? ' and noConflict(). Use $jq(), not $().' : ''}`
        ),
        uri: '//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js',
      },
      loDash: {
        check:      () => (typeof window._ === 'function'),
        getVersion: () => _.VERSION,
        uri: '//cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js',
      },
      FileSaver: {
        check:      () => (typeof saveAs === 'function'),
        getVersion: () => ('✓'),
        uri: '//cdn.rawgit.com/eligrey/FileSaver.js/c347c51f6e6e56221b2fa3d8c9b32e181f76355c/FileSaver.js',
      },
    };
    await loader.injectLibs(libs);

    const getFilename = (pdf) => {
      const dateReg = new RegExp('\\d+\\/\\d+\\/\\d\\d\\d\\d');

      /* Get the texts from siblings*/
      const sibs = $(pdf).closest('tr').siblings();
      const texts = sibs.map( (i, s) => {
        return $(s).text().trim().split('\n').slice(0,2).map( t => t.trim() );
      });

      const [allDates, allNames] = _.partition( texts.toArray(), t => t.match(dateReg) );

      /* Replace slashes with dashes for filename*/
      const dates = $.unique( _.map( allDates, (d) => d.replace( new RegExp('/', 'g'), '-' ) ) ).sort();
      /* Uniqueify names */
      const names = $.unique( allNames ).sort();

      /* Date range vs single date */
      if (dates.length > 1)
        return `${dates[0]} to ${dates.pop()} - ${names.join(', ')}.pdf`;
      return `${dates[0]} - ${names.join(', ')}.pdf`;
    };

    /* Add "Download All" button */
    $("<button class='download-all modaBtn'>Download All</button>")
      .appendTo( $('.eobs.title') )
      .click( (event) => {
        _.each( allEobs, (entry) => {
          /* Need to use raw XHR API instead of jQuery to set responseType to blob */
          const xhr = new XMLHttpRequest();
          xhr.open( "GET", entry.uri );
          xhr.responseType = "blob";
          xhr.onload = (e) => {
            const blob = xhr.response;
            saveAs(blob, entry.filename, true);
          };
          xhr.send();
        });
        event.preventDefault();
      });

    /* Remove old download links */
    $('a.download').remove();
    /* Add new download links */
    let allEobs = $('a.pdf').map( (i, eob) => {
      const filename = getFilename(eob);
      const uri = $(eob).attr('href');
      $( `<a class='download' href='${uri}' download='${filename}'>Download</a>`).insertAfter( $(eob) );
      return { filename, uri };
    });

    /* Set download handler */
    $('a.download').click( (event) => {
      const a = $(event.target);
      const uri = a.attr('href');
      const filename = a.attr('download');

      /* Need to use raw XHR API instead of jQuery to set responseType to blob */
      const xhr = new XMLHttpRequest();
      xhr.open( "GET", uri );
      xhr.responseType = "blob";
      xhr.onload = (e) => {
        const blob = xhr.response;
        saveAs(blob, filename, true);
      };
      xhr.send();
      event.preventDefault();
    });
  }

  makeDownloadLinks();

})()