Jquery :: Loop To Create Dynamic-multiple Vars?

I am not sure if this is possible, but I want to create a multiple vars dynamically, for instance, these are the vars I create manually,

Code JavaScript:
var left_1 = $('.column-global.left .item-global').eq(0);
var left_2 = $('.column-global.left .item-global').eq(1);
var left_3 = $('.column-global.left .item-global').eq(2);

but the problem is I only need two or one vars above sometimes. but three is the max.

so I am thinking of passing a parameter into the function to tell the code to create either 2 or 3 vars,

Code JavaScript:
// I declare empty vars first
var left_1;
var left_2;

[Code].....