小编and*_*ias的帖子

What is the best way to deallocate an array of array in javascript to make sure no memory leaks will happen?

var foo = new Array();
foo[0] = new Array();
foo[0][0] = 'bar0';
foo[0][1] = 'bar1';
foo[1] = new Array();
...

1. delete(foo)?
2. iterate through foo, delete(foo[index]) and delete(foo)?
3. 1 and 2 give me the same result?
4. none?