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Task/Sorting-algorithms-Merge-sort/Sidef/sorting-algorithms-merge-sort.sidef

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+func merge(left, right) {
+    var result = [];
+    while (!left.is_empty && !right.is_empty) {
+        result.append([right,left][left.first <= right.first].shift);
+    };
+    result + left + right;
+}
+ 
+func mergesort(array) {
+    var len = array.len;
+    len < 2 && return array;
+ 
+    var mid   = (len/2 -> int);
+    var left  = array.ft(0, mid-1);
+    var right = array.ft(mid);
+ 
+    left  = __FUNC__(left);
+    right = __FUNC__(right);
+ 
+    merge(left, right);
+}
+ 
+# Numeric sort
+var nums = (0..7 -> shuffle);
+say mergesort(nums);
+ 
+# String sort
+var strings = ('a'..'e' -> shuffle);
+say mergesort(strings);