lawrence-laz/poem

A selection of useful extension methods to write fluent code.

Hi there 👋

poem's Issues

Review https://github.com/Tyrrrz/Extensions

Dictionary get or add

Sometimes dictionary is a just a part of a compound structure. In such cases a method like .GetOrAdd(TKey, Func<TVal>) would be useful.

Something like ensure prefix.

Sometimes you have a set of data that should be prefixed with some string, but not all entries are. Add a method that easily handles this. Something like string.EnsurePrefix("Prefix_").

Foreach over IEnumerable

public static IEnumerable<T> ForEach<T>(this IEnumerable<T> enumerable, Action<T> action)

Conditional action

Sometimes we have a LINQ chain that check's something and we want to execute an action depending on the boolean value the LINQ returns. This could be achieved with something like static bool IfTrue(this bool value, Action action).

TrimStart and Trim with string overloads

Currently Poem provides .TrimEnd(string) only. But there is the same need for .TrimStart(string) and .Trim(string).

Set all items on array

There's sometimes a need to set all array values to one specific value. There should be an extension method targeting arrays that does this. Something like:
SetAll<T>(this T[] array, T value)

Should string extensions be in global namespace (?)

They now require a using System; and it does not get suggested by intellisense.

StringExtension method ParseEnum

.ToEnumerable<T>() from single object

Using Directory.GetFiles with a regex in C#?

https://stackoverflow.com/questions/8443524/using-directory-getfiles-with-a-regex-in-c

Add `ReplaceFirst`, `ReplaceNth` for string

Update documentation with new methods

Compare strings ignoring casing

Currently dotnet provides a simple static method to compare two strings while ignoring casing:
int Compare(string? strA, string? strB, bool ignoreCase)
But there is no extension method for this.

Trim end on string using another string

Currently dotnet allows to trim character(s) using string TrimEnd(char trimChar).

Usually there's a need to trim a word or a collection of words. This method should also be an extension method returning a result.

Sign?

https://docs.microsoft.com/en-us/dotnet/standard/assembly/sign-strong-name

Join strings

Currently dotnet allows to joing string using a simple static method string Join(char separator, params object?[] values).

There should be an extension method on IEnumerable<T> that joins and returns a result.

Add `DirectoryInfo` extensions

• GetFilesOrEmpty() - should not throw if DirectoryInfo.Exists == false

Add source link

https://github.com/dotnet/sourcelink