khan4019 · khan4019 · Dec 22, 2014 · Nov 28, 2014 · Nov 28, 2014 · Nov 28, 2014
diff --git a/6a4a9ef7-bfbf-40fb-9848-40cf995e2c01.dmp b/6a4a9ef7-bfbf-40fb-9848-40cf995e2c01.dmp
diff --git a/images/binarySearch.png b/images/binarySearch.png
diff --git a/images/insert.jpg b/images/insert.jpg
diff --git a/images/insertionSort.png b/images/insertionSort.png
diff --git a/images/mergeSort.gif b/images/mergeSort.gif
diff --git a/images/quickSort.png b/images/quickSort.png
diff --git a/images/selectionSort.png b/images/selectionSort.png
diff --git a/js2.html b/js2.html
@@ -573,8 +573,8 @@ <h2>16. Pass by value or by reference</h2>
 console.log(num); // 10
 console.log(name);// "Addy Osmani"
 console.log(obj1.value);//"first value"
-console.log(obj2.valuee);//"new value"
-console.log(obj3.valuee);//"new value"        
+console.log(obj2.value);//"new value"
+console.log(obj3.value);//"new value"        
      </code></pre>
         <p>ref: <a href="http://snook.ca/archives/javascript/javascript_pass">Snook: passing by value or reference</a></p>
       </div>
@@ -592,7 +592,7 @@ <h2>17. memoization</h2>
    else if (n &lt; 2){
      return 1;
    }else{
-     fibonacci(n-2) + fibonacci(n-1);
+     _fibonacci(n-2) + _fibonacci(n-1);
    }
 }
         </code></pre>        

diff --git a/search.html b/search.html
@@ -0,0 +1,232 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
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+    <meta name="description" content="">
+    <meta name="that js dude" content="">    
+    <title>JS: interview Questions -5</title>
+
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+  </head>
+
+  <body>
+
+    <!-- Main jumbotron for a primary marketing message or call to action -->
+    <div class="jumbotron">
+      <div class="container">
+        <h1>JS: Interview Questions</h1>        
+        <h4>Search and sort related interview questions for intermediate JavaScript developers</h4>
+        <h2>part-5: intermediate</h2>
+        <p>June 29, 2014</p>
+<!--         <div id="fb-root"></div><div class="fb-like" data-href="http://www.thatjsdude.com/interview/dom.html" data-layout="button_count" data-action="like" data-show-faces="false" data-share="false"></div><div class="g-plusone"></div> 
+ -->      </div> 
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+      </div>
+
+      <!-- <p class="gray">if you are little more comfortable or claim to be comfortable with javascript, these questions would not be enough for you. more coming</p>
+      <p class="gray"> <span class="purpleBold">More Questions</span> <a href="css.html">css interview questions</a>, <a href="html.html">html interview questions</a> </p> -->
+    <div id="questionList">
+      <h2>todo list</h2>
+      <ol>
+        <li>add questions</li>
+        <li></li>
+        <li></li>
+        <li></li>
+        <li></li>
+      </ol>
+    </div>
+
+      <div id="binarySearch">
+        <h2>binary search</h2>
+        <p><strong>Question:</strong> How to implement binary search algorithm?</p>
+        <p><strong>Answer:</strong>Binary search tries to find an item in a sorted list. For example, if you have an array like <code>[3,9,11,21,32,37,43,56,63,69,78]</code> and you are looking for 69.</p>
+        <p><strong>How it works:</strong>Lets select the middle one, you got: 37. You are looking for 69. As you know, the array is sorted, you will know that 69 will be after 37. This means upper half of the array. Now, you will go and check the middle item of the upper half of the array. In that way, you are saving time to search the item in the lower half of the array.</p>
+        <p>The middle item of the upper half of the array is 63. Which is smaller than the number you are looking for. Hence, you can skip the lower part of the upper half. This means, your item will be in the top most quarter of the array. Now, you will keep the right side and pick the middle</p>
+        <p>The middle of the right side is 69. Thats what you were looking for.</p>
+        <p><strong>Why binary search</strong> If you were using linear search (start from the left and check one by one), you have to check 10 times to find the item. If you use binary search, you get after three times. You see the benefits!!</p>
+        <img src="images/binarySearch.png" alt="">
+        <p>Now if you have a million items in an array. For example, you have number 0 to 1000,000 and you want to find out 696,969. The binary search will take only 17 steps to find the item. where as if you start a linear search, it will take 696,969 steps to find the item.</p>
+        <pre><code>
+function binarySearchIterative(arr, val){
+   var start = 0,
+       end = arr.length-1, 
+       mid, 
+       midVal;
+
+   while(end >= start){
+     mid = Math.floor((start+end)/2);
+
+     midVal = arr[mid];
+
+     if(midVal==val)
+         return mid;
+
+     if(val&lt;midVal)
+         end = mid - 1;
+     if(val&gt;midVal)
+         start = mid + 1;
+
+  } 
+  return -1;
+}
+
+//try it now
+binarySearchIterative([1,2,3,4,5], 1); //0
+binarySearchIterative([1,2,3,4,5], 5); //4
+binarySearchIterative([1,2,3,4,5], 55); //-1
+        </code></pre>
+        <p><strong>Complexity</strong></p>
+        <pstrong  Performance</p>
+        <p>Recusrive algo</p>
+        <pre><code>
+function binarySearchRecursive(arr, val, startIdx, endIdx){
+   var mid = Math.floor((startIdx + endIdx)/2), 
+       midVal = arr[mid];
+
+   if(midVal == val)
+      return mid;
+   if (endIdx &lt; startIdx)
+      return -1;
+
+   if (val&lt;midVal)
+      return binarySearchRecursive(arr, val, startIdx, mid -1);
+   else if (val &gt; midVal)
+      return binarySearchRecursive(arr, val, mid + 1, endIdx);
+
+}
+
+//try it now
+binarySearchRecursive([1,2,3,4,5], 1, 0, 4); //0
+binarySearchRecursive([1,2,3,4,5], 5, 0, 4); //4
+binarySearchRecursive([1,2,3,4,5], 2, 0, 4); //1
+binarySearchRecursive([1,2,3,4,5], 22, 0, 4); //-1
+        </code></pre>
+        <p>ref: <a href="http://en.wikipedia.org/wiki/Binary_search_algorithm">binary search</a></p>
+      </div>  
+
+    <div>
+      <h3 class="purpleBold">Express anger!</h3>        
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diff --git a/slides/images/change.jpg b/slides/images/change.jpg
diff --git a/slides/images/desire.jpg b/slides/images/desire.jpg
diff --git a/slides/images/exam.jpg b/slides/images/exam.jpg
diff --git a/slides/images/risk.jpg b/slides/images/risk.jpg
diff --git a/slides/images/risk1.jpg b/slides/images/risk1.jpg
diff --git a/slides/images/try.jpg b/slides/images/try.jpg
diff --git a/slides/index.html b/slides/index.html
@@ -77,7 +77,7 @@ <h1>Employer Rules</h1>
 						<h1>Basic Rules</h2>
 						<ol class="stretch">
 							<li class="fragment"><h3>Always worth more to other emoployer</h3></li>
-							<li class="fragment"><h3>Getting on board isnt staying on board</h3></li>
+							<li class="fragment"><h3>This is like romantic relation</h3></li>
 							<li class="fragment">
 								<h3>Unless, you got another offer</h3>
 							</li>