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<script>
var arr = [9, 5, 7, 6, 4, 3, 1, 2, 8]
var len = arr.length;
var minIndex, temp;
for (var i = 0; i < len - 1; i++) {
minIndex = i;
for (var j = i + 1; j < len; j++) {
if (arr[j] < arr[minIndex]) {
minIndex = j;
}
}
temp = arr[i];
arr[i] = arr[minIndex];
arr[minIndex] = temp;
}
console.log(arr);
</script>
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