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exceljs / exceljs

Excel Workbook Manager

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ERROR in node_modules/exceljs/index.d.ts(1648,34): error TS2503: Cannot find namespace 'NodeJS'.

phanbien9x opened this issue · comments

commented

My application can not start after integrated exceljs. I use angular 7. I checked on node_modules/exceljs/index.d.ts but there are not error. I tried to run example with angular 6 then it work. Please let me know how to implement exceljs in angular 7. Advanced thanks!

I use:
"exceljs": "^2.0.1",
"file-saver": "^2.0.2",

"@angular/cli": "^7.3.0",
"@types/node": "^12.7.5",

commented

I have the same issue.
The other import
import * as Excel from "exceljs/dist/exceljs.min.js";
Fixes the issue, but then you don't get the types.

commented

Changing the version of @types/node to "@types/node": "^10.12.0" works for me.

commented

I have the same issue.
The other import
add tsconfig.json below code
"compilerOptions" :{
"exceljs": [
"node_modules/exceljs/dist/exceljs.min.js"
]
}

commented

I tried all of your suggestion but it only work when I use "workbook" imported by @sasapet way like this:
const workbook = new Excel.Workbook();
Thank all of you to help me! :)

commented

Instead of importing
Use it in the following way in your function:
const Excel = require('exceljs');

Example:

// Excel exporter
    ExportToExcel(Header, ReportName): void {
        // Excel object
        const Excel = require('exceljs');

        //  Create workbook
        const workbook = new Excel.Workbook();

        // Create worksheet
        const worksheet = workbook.addWorksheet(ReportName);

        // Title row
        const titleRow = worksheet.addRow([ReportName]);
        // Customize Title row
        titleRow.font = { name: 'Helvetica Neue', family: 4, size: 16};

        // Export to file
        workbook.xlsx.writeBuffer().then((data) => {
            FService.saveAs(new Blob([data]), ReportName + '_export_' + new Date().getTime() + '.xlsx');
        });
    }
commented

I erase the NodeJS.TypedArray from "index.d.ts" in de "node_modules/exceljs"

that works for me :)

image

not the best form to fix it but works

commented

update "@types/node"-dependency" in your devDependencies to the latest version.

"@types/node": "~12.12.14",

commented

I have the same issue.
The other import
import * as Excel from "exceljs/dist/exceljs.min.js";
Fixes the issue, but then you don't get the types.

I faced this issue and this solution works for me

commented

solution without the change in the tsConfig file

this method does not support an array of objects or objects, but it does support an array or an array of arrays.

if you have used excelJs methods with objects or an array of objects this problem will occur.
u can use a function to transfer the object to array :

  • Object.values(obj)