Join Array from startIndex to endIndex

Question

I wanted to ask if there is some kind of utility function which offers array joining while providing an index. Maybe Prototype of jQuery provides this, if not, I will write

Answer 1

Just slice the array you want out, then join it manually.

var array= ["a", "b", "c", "d"];
var joinedArray = array.slice(1, 3).join("-");

Note: slice() doesn't include the last index specified, so (1, 3) is equivalent to (1, 2).