What are some common type inference scenarios in programming?

What are some common type inference scenarios in programming?

Type inference is when a programming language automatically deduces the type of a variable. Common scenarios include variable declarations without explicit types, function return types, and generic types.

Can you give me an example of type inference in Python?

Sure! In Python, if you write x = 10, the interpreter infers that x is of type int. Similarly, y = 'Hello' infers that y is a str.

What about in statically typed languages?

In statically typed languages like TypeScript, type inference can occur when you declare a variable with an initial value, like let z = true;, where z is inferred as a boolean.

Are there any downsides to type inference?

Yes, one downside is that it can lead to less readable code if the inferred types are not clear, making debugging harder.