JS While Loops

gistfile1.js

// fast
var i = myArr.length;
while (i--) {
    console.log(i + ': ' + myArr[i]);
}

// while loop
var i = 0;
while (i < myArr.length) {
    console.log(i + ': ' + myArr[i]);
    i++;
}

// do while loop
var i = 0;
do {
    console.log(i + ': ' + myArr[i]);
    i++;
}
while (i < myArr.length);