In node.j my number has commas

[benzmuircroft]

In the browser

console.log(bigInt('9999999999999999990').add('1').value.toString());

9999999999999999991

In Node.js

console.log(bigInt('9999999999999999990').add('1').value.toString());

9999991,9999999,99999

[Happypig375]

value is the internal representation. Browsers that implement bigInt will have a native value. In contrast, when bigInt is not natively implemented, an array is used to polyfill. This behavior is expected.

[benzmuircroft]

so i should value.reverse().join('')

?

[Happypig375]

Use toString() without .value

[benzmuircroft]

k thanks