What is the difference between statically typed and dynamically typed languages?

Question

I hear a lot that new programming languages are dynamically typed but what does it actually mean when we say a language is dynamically typed vs. statically typed?

Answer 1

Static typed languages (compiler resolves method calls and compile references):

• usually better performance
• faster compile error feedback
• better IDE support
• not suited for working with undefined data formats
• harder to start a development when model is not defined when
• longer compilation time
• in many cases requires to write more code

Dynamic typed languages (decisions taken in running program):

• lower performance
• faster development
• some bugs might be detected only later in run-time
• good for undefined data formats (meta programming)