14 lines
319 B
JavaScript
14 lines
319 B
JavaScript
function binary_search_iterative(a, value) {
|
|
lo = 0;
|
|
hi = a.length - 1;
|
|
while (lo <= hi) {
|
|
var mid = Math.floor((lo+hi)/2);
|
|
if (a[mid] > value)
|
|
hi = mid - 1;
|
|
else if (a[mid] < value)
|
|
lo = mid + 1;
|
|
else
|
|
return mid;
|
|
}
|
|
return null;
|
|
}
|