--- /dev/null
+module.exports = function numberFormat(number, dec, dsep, tsep) {
+ if (isNaN(number) || number == null) return '';
+
+ number = number.toFixed(~~dec);
+ tsep = typeof tsep == 'string' ? tsep : ',';
+
+ var parts = number.split('.'),
+ fnums = parts[0],
+ decimals = parts[1] ? (dsep || '.') + parts[1] : '';
+
+ return fnums.replace(/(\d)(?=(?:\d{3})+$)/g, '$1' + tsep) + decimals;
+};