csharpessentials-core

name	csharpessentials-core
description	Use for low-level C# utility helpers — string case conversions (ToPascalCase/ToSnakeCase/ToKebabCase), URL-safe and v7 GUID generation, null-safe collection helpers (WhereNotNull, AddIf), and async cancellation utilities.

CSharpEssentials.Core

Lightweight C# utility helpers. No functional patterns here — those live in the Results, Errors, Maybe, and Any skills.

Installation

dotnet add package CSharpEssentials.Core

Or the meta-package (includes Core + Results + Errors + Maybe + Any):

dotnet add package CSharpEssentials

Namespace

using CSharpEssentials.Core;

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String Case Conversions

"helloWorld".ToPascalCase()     // "HelloWorld"
"HelloWorld".ToSnakeCase()      // "hello_world"
"HelloWorld".ToKebabCase()      // "hello-world"
"hello-world".ToCamelCase()     // "helloWorld"

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GUID Utilities

// URL-safe Base64 GUID (compact, URL-safe, no padding)
string id = Guider.NewGuid();

// Version 7 GUID — time-sortable, database index-friendly (.NET 9+)
Guid id = Guider.NewGuidV7();

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Null-Safe / Conditional Helpers

// Execute action only when value is non-null
value.IfNotNull(v => process(v));

// Add to list conditionally
list.AddIf(condition, item);

// Filter nulls from sequence
IEnumerable<string> names = rawList.WhereNotNull();

// Cancellation-aware task awaiting
await longRunningTask.WithCancellation(ct);

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Best Practices

• Use Guider.NewGuidV7() for database primary keys — time-sortable GUIDs reduce index fragmentation
• WhereNotNull() is safer than .Where(x => x != null).Select(x => x!) — handles nullable annotations correctly
• IfNotNull() is a statement form; for transforms use Maybe<T>.Map() instead