File - saver generate excel table directly to the background-CodePudding

Use the
NPM install file - saver - save
Bower install file - saver
On the browser to the excel table generated from the table, but can not download, formation, directly to the background, how come???????????

 
Export2Excel () {
Let tables=document. GetElementById (" out - table "); 
Let table_book=this. $XLSX. Utils. Table_to_book (tables). 
Var table_write=this. $XLSX. Write (table_book, {
BookType: "XLSX," 
BookSST: true, 
Type: "array" 
}); 
Try {
Let the userAgent=the navigator. UserAgent; 
//compatible with ie browser 
If (userAgent. IndexOf (" Trident ")!==1 & amp; & UserAgent. IndexOf (' Windows')!==1) {
Let the blob=new blob ([table_write], {type: 'application/octet stream -'}); 
The console. The log (blob); 
This $FileSaver. SaveAs (blob, "sheetjs. XLSX"); 
} else {//compatible with Google firefox 
Let the file=new file ([table_write], "sheetjs. XLSX," {type: "application/octet - stream"}); 
console.log(file); 
This. $FileSaver. SaveAs (file); 
} 
} the catch (e) {
If (typeof console! .=="undefined") the console log (e, table_write); 
} 
Return table_write; 
},