javascript - Creating Arrays Dynamically with a for loop -

i making application needs read 10 song names , 5 ratings per song. thing having 1 array each song store name , 5 different ratings ideal don't know how dynamically create arrays loop. ideas? here sample:

for (var song = 1; song < 11; song++) {     prompt("give song title, no:" + " " + song);     (var = 1; < 8; i++) {         prompt("give song no:" + " " + song + " " + ", rating:" + i);        }   } 

i suggest have array of objects, each object contains title , array of ratings, giving structure looks this:

[   {     title: "first song",     ratings: [ 5, 3, 4, 1, 4 ]   },   {     title: "second song",     ratings: [ 2, 3, 2, 1, 1 ]   } ] 

create array first, create object each song empty array ratings. can put ratings in array:

var songs = []; (var song = 0; song < 10; song++) {   var title = prompt("give song title, no: " + song);   songs[song] = {     title: title,     ratings: []   };   (var = 1; <= 5; i++) {     var rating = prompt("give song no: " + song + " , rating:" + i);     songs[song].ratings.push(rating);   } }