var a = { 1: [b1],[c1], 2: [b2],[c2], ............ n: [bn],[cn] }
var a ={ 1: value1, 2: value2, ........ n: valuen }
var a = {}; var n = 5; for (var i = 1; i <= n; i++) { a[i] = 'value'+i; }
var a=['val1','val2','val3']; var o={}; for (var i=0; i<a.length; i++) { o[i+1]=a[i]; }; console.log(o);
var a = ['val1','val2','val3']; var o = []; for (var i = 0; i < a.length; i++) { o.push(a[i]); } console.log(o);