How can I create a nested array in JavaScript? -

with code below:

var result = []; result.push({success : 1}); (var = 0; < rows.length; i++) {     result.push({email : rows[i].email}); }; 

i create array looks this:

[   {     "success": 1   },   {     "email": "email1@email.com"   },   {     "email": "email2@email.com"   },   {     "email": "emailn@email.com"   } ] 

but want create array looks this:

[   {     "success": 1   },   {     "email": ["email1@email.com","email2@email.com","emailn@email.com"]   } ] 

i'm stuck on exact syntax doing this. how can put array inside array?

var result = [   { success : 1 },   { email   : rows.map(function(row) {       return row.email;     })   } ]; 

some explanation: rows array, , arrays in js have method .map() can used process each item in array , return new array processed values.

for each item, function called value of item, , whichever value returned function added new array.

in case, function returns email property each of items, end array of e-mail addresses, want.

edit: initial suggestion make result object instead:

var result = {   success : 1,   email   : rows.map(function(row) {     return row.email;   }) }; 

whether better depends on requirements structure of data.