Added selection sort

Author: ChinaraGuliyeva

selection-sort.js

@@ -0,0 +1,25 @@
+const findSmallest = (arr) => {
+    let smallest = arr[0];
+    let smallestIndex = 0;
+    for (let i=0; i<arr.length; i++){
+        if(arr[i]<smallest){
+            smallest = arr[i];
+            smallestIndex = i;
+        }
+    }
+    return smallestIndex;
+}
+
+const selectionSort = (arr) => {
+    let newArr = [];
+    let smallest;
+    let length = arr.length;
+    for(let i = 0; i<length; i++){
+        smallest = findSmallest(arr);
+        newArr.push(arr[smallest]);
+        arr.splice(smallest, 1);
+    }
+    return newArr;
+}
+
+console.log(selectionSort([5, 3, 6, 2, 10]));