Core/Refactor: Part 2

Source/Framework/Util/Extensions.cs

@@ -57,7 +57,7 @@ namespace System
 
         public static byte[] ToByteArray(this string value, char separator)
         {
-            return Array.ConvertAll(value.Split(separator), s => byte.Parse(s));
+            return Array.ConvertAll(value.Split(separator), byte.Parse);
         }
 
         static uint LeftRotate(this uint value, int shiftCount)
@@ -144,7 +144,7 @@ namespace System
                     ret = (BigInteger)Convert.ChangeType(value, typeof(BigInteger));
                     break;
                 default:
-                    throw new NotSupportedException(string.Format("'{0}' conversion to 'BigInteger' not supported.", typeof(T).Name));
+                    throw new NotSupportedException($"'{typeof(T).Name}' conversion to 'BigInteger' not supported.");
             }
 
             return ret;
@@ -268,10 +268,7 @@ namespace System
             string pattern = @"(%\W*\d*[a-zA-Z]*)";
             
             int count = 0;
-            string result = Regex.Replace(str, pattern, m =>
-            {
-                return string.Concat("{", count++, "}");
-            });
+            string result = Regex.Replace(str, pattern, m => string.Concat("{", count++, "}"));
 
             return result;
         }

Source/Framework/Util/RandomHelper.cs

@@ -19,7 +19,7 @@ using System.Diagnostics.Contracts;
 
 public class RandomHelper
 {
-    private readonly static Random rand;
+    private static readonly Random rand;
 
     static RandomHelper()
     {

Source/Framework/Util/Time.cs

@@ -185,7 +185,7 @@ public static class Time
         long hours = (time % Day) / Hour;
         long minute = (time % Hour) / Minute;
 
-        return string.Format("Days: {0} Hours: {1} Minutes: {2}", days, hours, minute);
+        return $"Days: {days} Hours: {hours} Minutes: {minute}";
     }
 
     public static void Profile(string description, int iterations, Action func)