isNumeric

static isNumeric(valueToCheck: string | number): boolean {
    if (typeof valueToCheck === 'number') {
      return true;
    }

    if (typeof valueToCheck !== 'string' || /\s/g.test(valueToCheck)) {
      return false;
    }

    return !Number.isNaN(valueToCheck) && !Number.isNaN(parseFloat(valueToCheck));
}