index.js
function isInt(value) {
  if (isNaN(value) || exports.isString(value)) {
    return false;
  }
  var x = parseFloat(value);
  return (x | 0) === x;
}
function isInt(value) {
  if (isNaN(value) || exports.isString(value)) {
    return false;
  }
  var x = parseFloat(value);
  return (x | 0) === x;
}
function isInt ( value ) { if ( isNaN ( value ) || exports . isString ( value ) ) { return false ; } var x = parseFloat ( value ) ; return ( x | 0 ) === x ; }
check value is integer
check value is integer