https://github.com/gruvw/nmap

A dart package that provides `!= null` map operation extension (null map, nmap).
https://github.com/gruvw/nmap

dart dartlang flutter null-safety

Last synced: 28 days ago
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A dart package that provides `!= null` map operation extension (null map, nmap).

• Host: GitHub
• URL: https://github.com/gruvw/nmap
• Owner: gruvw
• License: gpl-3.0
• Created: 2024-08-28T20:06:27.000Z (4 months ago)
• Default Branch: main
• Last Pushed: 2024-09-04T11:06:45.000Z (4 months ago)
• Last Synced: 2024-12-06T18:03:15.775Z (about 1 month ago)
• Topics: dart, dartlang, flutter, null-safety
• Language: Dart
• Homepage: https://pub.dev/packages/nmap
• Size: 25.4 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md

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README

        
# Dart Null Map

A dart package that provides `!= null` map operation extension (null map, `nmap`).

**Check it out** (install) on pub.dev: 

The null map operator applies the passed `convert` function on receiver if it is not `null`, returns `null` otherwise.

**Note**: this package is a temporary solution to the open Dart lang issue  while waiting for an actual language operator implementation.

## Usage

```dart

final int? a = null;

final int b = 1;

                                     

print(a.nmap((n) => n + 1)); // null

print(b.nmap((n) => n + 1)); // 2

```

See [implementation file](./lib/src/nmap_base.dart) for library source code.