javascript - How to wait for forEach to complete when each iteration calls an asynchronous options? -


alright, here's plan is. go through each file, add file array. once files added, combine them using jsziputility , docxtemplater:

'click .merge-icon': (e) => {     var programid = router.current().url.split('/').pop();     var programobj = programs.findone(programid);     var inserteddocuments = [];     var = 0;     var count = programobj.activityids.count;     var filedownloadpromise = new promise((resolve, reject) => {       programobj.activityids.foreach(function(activityid) {         var activityobj = activities.findone(activityid);         var documentobj = activityfiles.findone(activityobj.documents.pop()._id);         jsziputils.getbinarycontent(documentobj.url(), callback);         function callback(error, content) {           var zip = new jszip(content);           var doc = new docxtemplater().loadzip(zip);           var xml = zip.files[doc.filetypeconfig.textpath].astext();           xml = xml.substring(xml.indexof("<w:body>") + 8);           xml = xml.substring(0, xml.indexof("</w:body>"));           xml = xml.substring(0, xml.indexof("<w:sectpr"));           inserteddocuments.push(xml);           i++;           if (i == count - 1) {             resolve();           }         }       });     });     filedownloadpromise.then(() => {       jsziputils.getbinarycontent('/assets/template.docx', callback);       function callback(error, content) {         console.log(content);         var zip = new jszip(content);         var doc = new docxtemplater().loadzip(zip);         setdata(doc);       }        function setdata(doc) {         doc.setdata({           body: inserteddocuments.join('<w:br/><w:br/>')         });         doc.render();         useresult(doc);       }        function useresult(doc) {         var out = doc.getzip().generate({           type: 'blob',           mimetype: 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'         });         saveas(out, programobj.name + '.docx');       }     });   }

turns out nothing's happening. what's wrong execution of promise here ?

i'm calling resolve when every file has been loaded in array.


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