Add sorting functions

src/sorting.js

@@ -0,0 +1,44 @@
+function swap (items, firstIndex, secondIndex) {
+    let temp = items[firstIndex];
+    items[firstIndex] = items[secondIndex];
+    items[secondIndex] = temp;
+}
+
+export function bubbleSort (items) {
+    let len = items.length;
+    let stop = 0;
+
+    for (let i = 0; i < len; i++) {
+        for (let j = 0; stop=len-i, j < stop; j++) {
+            if (items[j] > items[j+1]) {
+                swap(items, j, j+1);
+            }
+        }
+    }
+
+    return items;
+}
+
+export function selectionSort (items) {
+    let len = items.length;
+    let min = 0;
+    let j = 0;
+
+    for (let i = 0; i < len; i++) {
+        min = i;
+
+        // Check to see if anything is smaller
+        for (j=i+1; j < len; j++) {
+            if (items[j] < items[min]) {
+                min = j;
+            }
+        }
+
+        // If the minimum isn't where it should be, swap it
+        if (i !== min) {
+            swap(items, i, min);
+        }
+    }
+
+    return items;
+}