expected = '1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,'; | |
function slice(a, b) { | |
return expected; | |
} | |
function f() { | |
var length = 4; | |
var index = 0; | |
function get3() { | |
if (length - index < 3) | |
return null; | |
return slice(index, ++index); | |
} | |
var bytes = null; | |
while (bytes = get3()) { } | |
} | |
f(); |