A set of very conservative extension methods — most of those closely follow common naming and implementation patterns in the .NET framework. You can get it from NuGet as AshMind.Extensions.

Below is an auto-generated list of the methods provided:

1. IndexOf
2. LastIndexOf
3. Reverse
4. Sort

1. IsControl
2. IsDigit
3. IsHighSurrogate
4. IsLetter
5. IsLetterOrDigit
6. IsLower
7. IsLowSurrogate
8. IsNumber
9. IsPunctuation
10. IsSeparator
11. IsSurrogate
12. IsSymbol
13. IsUpper
14. IsWhiteSpace
15. ToLower
16. ToLowerInvariant
17. ToUpper
18. ToUpperInvariant

1. AddRange
2. RemoveAll
3. RemoveWhere

1. TruncateToHours
2. TruncateToMilliseconds
3. TruncateToMinutes
4. TruncateToSeconds

1. AsComparison
2. AsFunction
3. AsPredicate
4. ToComparer

1. AsReadOnlyDictionary
2. GetOrAdd
3. GetValueOrDefault

1. IsInfinity
2. IsNaN
3. IsNegativeInfinity
4. IsPositiveInfinity

1. Any
2. AsCollection
3. AsList
4. AsReadOnlyCollection
5. AsReadOnlyList
6. AsSet
7. Concat
8. EmptyIfNull
9. Except
10. ForEach
11. GroupAdjacentBy
12. HavingMax
13. HavingMin
14. ToSet

1. ToInvariantString
2. ToString

1. Times

1. EnumerateRange
2. InsertRange
3. RemoveRange

1. CreateDelegate
2. IsAssignableFrom
3. IsAssignableTo
4. IsGenericTypeDefinedAs
5. IsSameAsOrSubclassOf
6. IsSubclassOf

1. AppendJoin

1. Contains
2. IsNullOrEmpty
3. IsNullOrWhiteSpace
4. NullIfEmpty
5. RemoveEnd
6. RemoveStart
7. Split
8. SubstringAfter
9. SubstringAfterLast
10. SubstringBefore
11. SubstringBeforeLast
12. TruncateEnd

1. Day
2. Days
3. Hour
4. Hours
5. Millisecond
6. Milliseconds
7. Minute
8. Minutes
9. Second
10. Seconds

ime

1. Day
2. Days
3. Hour
4. Hours
5. Millisecond
6. Milliseconds
7. Minute
8. Minutes
9. Second
10. Seconds