var enables implicit typing where the compiler determines the type from the assigned value. The variable is still strongly typed. Best Practices:
Use when type is obvious from assignment
Required for anonymous types
Use with LINQ queries for complex return types
Avoid when it reduces code readability
var number = 42; // int
var text = "Hello"; // string
var list = new List<int>(); // List<int>
// Required for anonymous types
var person = new { Name = "John", Age = 30 };
Rewriting in plainer words…
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