C# 12 has introduced primary constructors - a reasonably small feature, but the one that has already stirred up the community. What makes them so controversial?
There are several details to sort out before you can understand the role of primary constructors. One is that primary constructors are indeed just a minor feature. Don't expect much from them!
Another question is that of the connection with record types. Did you know primary constructors have existed in C# since version 9? They are an integral part of records, where a primary constructor is used to initialize the required components of the object.
That gives us the direction to think when applying a primary constructor to a custom class: Use it to indicate the required components assigned to properties, and you will be safe!
Contrary to that, if you rely on more advanced abilities of the primary constructor's parameters, such as their scope and even mutability, you will need more than a pair of eyes to keep your code from bugs.
Watch this video to learn the pros and cons of the primary constructors in C# 12. Learn the safe and reasonable use for them and a few pitfalls to avoid.

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