for-vs-while

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for
for (var i = 0; i < items.length; i++) {

  process(items[i]);

}
ready
while
var j = 0;

while (j < items.length) {

  process(items[j++]]);

}
ready
do-while
var k = 0;

do {

  process(items[k++]);

} while (k < items.length);
ready

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