validator/es/lib/isNumeric.js

String validation and sanitization

import assertString from './util/assertString';
import { decimal } from './alpha';
var numericNoSymbols = /^[0-9]+$/;
export default function isNumeric(str, options) {
  assertString(str);

  if (options && options.no_symbols) {
    return numericNoSymbols.test(str);
  }

  return new RegExp("^[+-]?([0-9]*[".concat((options || {}).locale ? decimal[options.locale] : '.', "])?[0-9]+$")).test(str);
}