var max = require('./max');

var pluck = require('./pluck');

var map = require('./map');

function getLength(arr) {

return arr == null ? 0 : arr.length;

}

/**

* Merges together the values of each of the arrays with the values at the

* corresponding position.

*/

function zip(arr){

var len = arr ? max(map(arguments, getLength)) : 0,

results = [],

i = -1,

item;

while (++i < len) {

results.push(map(arguments, function(item) {

return item == null ? undefined : item[i];

}));

}

return results;

}

module.exports = zip;