$ npm install comma-number

var commaNumber = require('comma-number') commaNumber(1000) // "1,000" commaNumber(-1000) // "-1,000" commaNumber(-1000, '.') // "-1.000"

Parameters:

• number : {(Number|String)} Number to format
• separator : {String} Value used to separate numbers

Returns:

• {String} Comma formatted number

$ npm test

MIT