quicktricks.dev

• Weekly coding tricks (each Tuesday)
• Daily Software Engineer thoughts & quick tips
• Developing an app to create your own code snippets!

[quicktricks.dev @quicktricks_dev]

😮‍💨Tired of writing the same math method multiple times for int, double, and decimal?

C# 11 introduced Generic Math — constrain T to INumber and the +, -, *, / operators just work.

One method. Any numeric type. Full type safety. 🚀

[quicktricks.dev @quicktricks_dev]

Master C#'s TimeProvider for ultimate time control!

Hardcoding https://t.co/lmdZdGquaB or DateTimeOffset.UtcNow makes your code impossible to test reliably.

.NET 8 introduced TimeProvider — an injectable abstraction for time that lets you freeze, advance, or mock time in tests without any hacks.

[quicktricks.dev @quicktricks_dev]

C# 14 introduces extension blocks — a cleaner way to add methods, properties, and operators to existing types.

They unify extension members, reduce boilerplate, and make type extension more expressive without modifying the original type.

[quicktricks.dev @quicktricks_dev]

@e_opore Great share!

[quicktricks.dev @quicktricks_dev]

C# 11's Raw String Literals simplify multi-line strings embedded in your code.

No more escaping quotes or special characters. Easy interpolation even with curly braces that you want to escape.

Visual Studio and the C# Dev Kit provide some validation and syntax highlighting when raw string literals contain JSON data or regular expressions. You can help this mechanism using a dedicated comment above the literal.

[quicktricks.dev @quicktricks_dev]

✨ C# 12 introduced Collection Expressions

It's a cleaner, more expressive syntax for initializing arrays, lists, spans, and even ImmutableArrays using simple square brackets `[ ]`.

The spread operator `..` lets you merge existing collections inline.

No more chaining `.Concat()`, `.Append()`, and `.ToArray()` just to combine two arrays.

[quicktricks.dev @quicktricks_dev]

Did you know C# can automatically capture the text of an argument passed to a method?

No more "Value cannot be null" without knowing which value.

Perfect for validation and assertion utilities.

[quicktricks.dev @quicktricks_dev]

@e_opore Thanks for checking out!

[quicktricks.dev @quicktricks_dev]

C# Tip: Ever had a null check that silently lied to you?

In C#, != null can be overloaded by a class to return whatever it wants. is not null bypasses that entirely.
It's a pattern match against the actual reference, not an operator call.

Small difference, big consequences.

[quicktricks.dev @quicktricks_dev]

🔥 C#: Add new interface members without breaking existing implementations!

With default interface implementations (C# 8+), you can add a method directly to an interface with a default body — classes that already implement the interface don't need to change a thing.

Perfect for evolving library APIs without forcing every consumer to update.

💬 Do you use default interface implementations in your projects, or do you prefer extension methods (or blocks) / abstract base classes for this?

[quicktricks.dev @quicktricks_dev]

@Shefali__J That's all you have influence on. The rest is out of control.

[quicktricks.dev @quicktricks_dev]

@trikcode And this phase is where most of the projects dies.

[quicktricks.dev @quicktricks_dev]

@trikcode Like a snake eating its own tail 😅

[quicktricks.dev @quicktricks_dev]

🧠 JavaScript Proxies allow you to wrap an object and intercept operations like property access, assignment, deletion, and even function calls.

You define a handler with traps that customize behavior.

Perfect for logging and validation.

[quicktricks.dev @quicktricks_dev]

@e_opore Bootstrap and tailwind!

[quicktricks.dev @quicktricks_dev]

@NanouuSymeon Lots of useful css rules!

[quicktricks.dev @quicktricks_dev]

@Shefali__J Great share Shefali!

[quicktricks.dev @quicktricks_dev]

@e_opore Great roadmap!

[quicktricks.dev @quicktricks_dev]

✨ C# Tip

Easily generate sequences of numbers within a specified range using Enumerable.Range().

Define your start & count to get exactly what you need for loops, arrays, or tests. Simplify your code!

[quicktricks.dev @quicktricks_dev]

@_devJNS At least it was polite delete, not an angry one 😅