C# Tip: Initialize lists size to improve performance
Lists have an inner capacity. Every time you add more items than the current Capacity, you add performance overhead. How to prevent it?
CSharp20 posts
C# Tip: List Pattern to match an collection against a sequence of patterns
By using list patterns on an array or a list you can check whether a it contains the values you expect in a specific position.
C# Tip: do NOT use nameof to give constants a value
In C#, nameof can be quite useful. But it has some drawbacks, if used the wrong way.
C# Tip: LINQ's Enumerable.Range to generate a sequence of consecutive numbers
If you need a sequence of numbers, you can pick two ways: use a While loop, or use Enumerable.Range
C# Tip: Raise synchronous events using Timer (and not a While loop)
When you need to fire synchronous events, don't use a while(true) loop: use a Timer!
C# Tip: use the @ prefix when a name is reserved
C#, as every other language, has several reserved keywords. Did you know that you can use them if you use the `@` prefix?
C# Tip: use Miniprofiler instead of Stopwatch to profile code performance
Miniprofiler is a nice tool to profile your code in a smart way.
C# Tip: SelectMany in LINQ
SelectMany is one of the LINQ methods I've used the least. I couldn't get it! Turns out it was actually incredibly simple.
C# Tip: use IHttpClientFactory to generate HttpClient instances
Initializing HttpClient instances can expose you to Socket Exhaustion problems. You should use IHttpClientFactory instead
C# Tip: Convert ExpandoObjects to IDictionary
How to get all the keys of an ExpandoObject? Convert it to Dictionary!
C# Tip: Use Debug-Assert to break the debugging flow if a condition fails
It would be great if we could break the debugging flow if a condition is (not) met. Can we? Of course!
C# Tip: How to temporarily change the CurrentCulture
What can you do if you need to temporarily change the CurrentCulture in C#?
C# Tip: Exception handling with WHEN clause
Instead of using if-else or switch blocks to handle exceptions, you can do it gracefully using the 'when' keyword.
C# Tip: use yield return to return one item at the time
Yield is a keyword that allows you to return an item at the time instead of creating a full list and returning it as a whole.
C# Tip: Use a SortedSet to avoid duplicates and sort items
Using the right data structure is crucial to building robust and efficient applications. So, why use a List or a HashSet to sort items (and remove duplicates) when you have a SortedSet?
C# Tip: use the Ping class instead of an HttpClient to ping an endpoint
Sometimes you need to ping some endpoints. Don't rely on HttpClient, but use the native Ping class.
C# tip: define Using Aliases to avoid ambiguity
Sometimes we need to use objects with the same name but from different namespaces. How to remove that ambiguity? By Using Aliases!
C# tip: create correct DateTimes with DateTimeKind
Creating simple DateTimes creates issues when handling timezones. You can solve some issues by using DateTimeKind
C# tip: String.IsNullOrEmpty or String.IsNullOrWhiteSpace?
Is your string really empty, or has it hidden characters? With String.IsNullOrEmpty and String.IsNullOrWhiteSpace you can find it
C# tip: how to get the index of an item in a foreach loop
Do you need the index of the current item in a foreach loop with C#? Here you'll see two approaches.