when using XLSX.read(),there is an error "Uncaught TypeError: Cannot read property 'read' of undefined",need help

when using XLSX.read(),there is an error “Uncaught TypeError: Cannot read property ‘read’ of undefined”, the code is below ,and i use meteor to develop

Template.codein.events({ ‘click #stock_save_id’:function(){ var filelist = document.getElementById(“stockfile_id”); //if(typeof require !== ‘undefined’) XLSX = require(‘xlsx’); if (filelist.files.length > 0) { for (i=0;i<filelist.files.length;i++) { var reader = new FileReader();

              reader.onload = function(e) { 
                // 这个事件在读取成功结束后触发
                if (e.error)
                {
                    swal("error is "+e.error);
                }
                else
                { 
                         var xlsrow = e.target.result;
                         alert(xlsrow);
                         var workbook = XLSX.read(xlsrow, {type: 'binary'});
                         //var workbook = XLSX.read(xlsrow);
                         alert("over");


                }

             };

            reader.readAsBinaryString(filelist.files[i]); 
            //reader.readAsDataURL(filelist.files[i]);    
          }
      }
      },

[pferreirafabricio]

I had a similar issue with the XLSX on Vue.js.

I was importing the lib on a component with import XLSX from 'xlsx' and getting this error on the console:

[Vue warn]: Error in v-on handler: "TypeError: Cannot read properties of undefined (reading 'utils')"

And then I noticed on the terminal (which was running the vue.js app) the message: "export 'default' (imported as 'XLSX') was not found in 'xlsx'

So I’ve resolved it by changing the import to: import * as XLSX from 'xlsx'

[digelim]

Try replacing this line: //if(typeof require !== ‘undefined’) XLSX = require(‘xlsx’); to this: XLSX = require(‘xlsx’);