Programming Model of Programming Language

Programming Model

Process-oriented language

Object-oriented language

Ruby

Stack-based language

Postscript, forth

Rule-based language

PROLOG

Fact-based and rule-based Query: Expert System

Prototype-based language

Io, Lua, self, JS

All objects are clones of another object.

Function TypeProgramming Language

Get the same result with the same input. Internal non-save status ---> no concurrency Problem

Erlang: scalable concurrency and Reliability

Haskell: Pure Functional Programming Language

Hybrid

Scala: adding the wings of functional programming to Java

Clojure: Based on JVM

Type Model

Strong type, weak type

Dynamic and Static types

Ruby duck type: It looks like a duck, that is, a duck. The principle is for interface encoding, rather than implementation.

Metaprogramming

Write capabilityProgramProgram