powers.js

[[],
 
 [1],
 [2],
 [3],
 [4],
 [5],
 
 [1,2],
 [1,3],
 [1,4],
 [1,5]
 [2,3],
 [2,4],
 [2,5]
 [3,4],
 [3,5]
 [4,5],
 
 [1,2,3],
 [1,2,4],
 [1,2,5],
 [1,3,4],
 [1,3,5],
 [1,4,5],
 [2,3,4],
 [2,3,5],
 [2,4,5],
 [3,4,5],
 
 [1,2,3,4]]
 
[[],
 
 [1],
 [2],
 [3],
 [4],
 
 [1,2],
 [1,3],
 [1,4],
 [2,3],
 [2,4],
 [3,4],
 
 [1,2,3],
 [1,2,4],
 [1,3,4],
 [2,3,4],
 
 [1,2,3,4]]
 
 [[],
 
 [1],
 [2],
 [3],
 
 [1,2],
 [1,3],
 [2,3],
 
 [1,2,3]]
 
count = 2;
max = 3;

list = [1,2,3]
flag = true;
index = 1;
num = 1;
while(flag) {
  arr = [];
  prefix = [1];
  for(var i = 0; i < count; i++) {
    prefix.concat([]);
  }
}


[1,2],
[1,3],
[2,3],

while(flag) {
  for(var i = 0; i < count; i++) {
  }
}