yariv's blog 零星摘要

Functional languages like Erlang have the opposite philosophy. They try to minimize the context surrounding a piece of logic-- a function. All you have to know is what parameters a function takes and what it returns. There is no implicit link between the function and the data it uses. With single-assignment, you don't even have to worry about functions mangling the values of your variables. When you're coding in Erlang as opposed to Java, you think less about the context of your functions and more about what they do and how to compose them together to solve your problem.