ds-algo-study/DS-n-Algos/Arrays/Array-Flatten/arrflat.js

Just experimenting with publishing a package

module.exports = function ( arr ) {
  return flat( arr, [] );
};

function flat( arr, res ) {
  var i = 0,
    cur;
  var len = arr.length;
  for ( ; i < len; i++ ) {
    cur = arr[ i ];
    if ( Array.isArray( cur ) ) {
      return flat( cur, res );
    } else {
      return res.push( cur )
    }
    

  }
  return res;
}