What are the features of the fmt package?

What are the main features of the fmt package?

The fmt package provides formatted I/O functions, allowing you to format strings, numbers, and other data types easily.

Can you give me an example of how to use it?

Sure! You can use fmt.Printf to print formatted output. For example: fmt.Printf("Hello, %s! You are %d years old.", name, age) will format the string with the provided variables.

Does it support formatting for different data types?

Yes, it supports various data types including integers, floats, strings, and even custom types with defined formatting methods.

Are there any performance considerations I should be aware of?

While fmt is convenient, it may not be the fastest option for high-performance applications. For critical paths, consider using lower-level I/O functions.