// A for-of loop over an array does not take a snapshot of the array elements. | |
// Instead, each time the loop needs an element from the array, it gets its current value. | |
var a = [3, 5, 5, 4, 0, 5]; | |
var s = ''; | |
for (var i of a) { | |
s += i; | |
a[i] = 'X'; | |
} | |
assertEq(s, '355X0X'); |