https://github.com/jpmikkers/baksteen.extensions.wherenotnull

Extension methods to skip null elements from a sequence
https://github.com/jpmikkers/baksteen.extensions.wherenotnull

csharp extension extension-method nullable

Last synced: 20 days ago
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Extension methods to skip null elements from a sequence

• Host: GitHub
• URL: https://github.com/jpmikkers/baksteen.extensions.wherenotnull
• Owner: jpmikkers
• License: mit
• Created: 2022-03-20T15:28:25.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2025-02-20T10:16:18.000Z (3 months ago)
• Last Synced: 2025-05-02T07:50:21.773Z (22 days ago)
• Topics: csharp, extension, extension-method, nullable
• Language: C#
• Homepage:
• Size: 11.7 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Baksteen.Extensions.WhereNotNull

This package contains a pair of IEnumerable extension methods named `WhereNotNull()`. The method skips all null elements from a sequence.

This is useful for projects that have nullable reference types enabled because it converts `IEnumerable` into `IEnumerable` .

  

## How to use:

  

  For nullable reference types:

  

    using Baksteen.Extensions.WhereNotNull;

    ...

    var seq = new string?[] { "one", null, "two", null, null, "three", null, null, null }

    var result = seq.WhereNotNull();

    // the result is IEnumerable { "one", "two", "three" }

  

  For nullable value types:

  

    using Baksteen.Extensions.WhereNotNull;

    ...

    var seq = new int?[] { 1, null, 2, null, null, 3, null, null, null }

    var result = seq.WhereNotNull();

    // the result is IEnumerable { 1, 2, 3 }

## See also

For more insight on the rationale of this extension, see:

* https://github.com/dotnet/runtime/issues/30381

* https://stackoverflow.com/questions/59431558/using-linqs-where-select-to-filter-out-null-and-convert-the-type-to-non-nullabl