add linear search and reverse a string algorithm

LinearSearch/linearsearch.js

@@ -0,0 +1,15 @@
+function linearSearch(value, list) {
+    let found = false;
+    let position = -1;
+    let index = 0;
+
+    while(!found && index < list.length) {
+        if(list[index] == value) {
+            found = true;
+            position = index;
+        } else {
+            index += 1;
+        }
+    }
+    return position;
+}

bubble-sort/bubbleSort.js

@@ -0,0 +1,15 @@
+function bubbleSort(items) {
+  var length = items.length;
+  for (var i = (length - 1); i >= 0; i--) {
+    //Number of passes
+    for (var j = (length - i); j > 0; j--) {
+      //Compare the adjacent positions
+      if (items[j] < items[j - 1]) {
+        //Swap the numbers
+        var tmp = items[j];
+        items[j] = items[j - 1];
+        items[j - 1] = tmp;
+      }
+    }
+  }
+}

reversingString/reversestring.js

@@ -0,0 +1,6 @@
+function reverse(str) {
+    let reversedString = str.split("").reverse().join("")
+    return reversedString
+  };
+  reverse('abcd');
+ // result --> dcba