30-seconds-of-code/snippets/toDecimalMark.md

toDecimalMark

Use toLocaleString() to convert a float-point arithmetic to the Decimal mark form. It makes a comma separated string from a number.

const toDecimalMark = num => num.toLocaleString('en-US');

toDecimalMark(12305030388.9087); // "12,305,030,388.9087"