michael@0: var a = [];
michael@0: for (let j = 0; j < 6; ++j) {
michael@0:   e = 3; 
michael@0:   for each (let c in [10, 20, 30]) { 
michael@0:     a.push(e);
michael@0:     e = c; 
michael@0:   }
michael@0: }
michael@0: for (let j = 0; j < 6; ++j) {
michael@0:   assertEq(a[j*3 + 0], 3);
michael@0:   assertEq(a[j*3 + 1], 10);
michael@0:   assertEq(a[j*3 + 2], 20);
michael@0: }