'use strict';

/**
 * Trim the decimal to maximum numbers of digits
 * @param {*} value the decimal value
 * @param {*} digits maximum number of decimal digits
 */
function fixedTo(value, digits) {
  if (!value) return value;
  var re = new RegExp('(-?\\d+\\.\\d{' + digits + '})(\\d)'),
    m = value.toString().match(re);
  return m ? parseFloat(m[1]) : value;
};

function padZero(num, size) {
  let s = num + '';
  while (s.length < size) {
    s = '0' + s;
  }
  return s;
}

module.exports = {
  fixedTo, padZero
}