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Adding Binary Search
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src/algorithms/search/binary-search/BinarySearch.js
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27
src/algorithms/search/binary-search/BinarySearch.js
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@ -0,0 +1,27 @@
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var myList = [1, 3, 5, 7, 9];
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function binarySearch(myList, itemToFind) {
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var low = 0,
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high = myList.length - 1,
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mid,
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guessed;
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while(low <= high) {
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mid = Math.floor((low + high) / 2),
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guessed = myList[mid];
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if(guessed === itemToFind) {
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console.log('Found item at index: ' + mid + ', value is ' + guessed);
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return;
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}
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if(itemToFind < guessed) {
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high = mid - 1;
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} else {
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low = mid + 1;
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}
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}
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return null;
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}
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binarySearch(myList, 3);
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