Today-I-Learned

Category

• CS
• C++
• PHP
• JAVA
• WEB
• Network
• DATABASE

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CS

• Core
• Process
• Thread
• 부동소수점
• Blocking vs Non-Blocking vs Syncronize vs Asyncronize

C++

• ios::sync_with_stdio(false)
• next_permutation()

PHP

• PSR
• isset() & empty()
• How to use in_array()
• Array
• count()
• init_set()
• PHPMailer
• Check Validation
• use, namespace Keyword
• CURL
• autoload
• PHP External Library runtime
• DesignPattern

DesignPattern

• SingletonPattern
  • singleton
• FactoryPattern
  • factory

CodeIgniter 3, 4

• What is CodeIgniter4 MVC?
• result_array() || row_array()

Lavavel

Javascript

• sort()
• substr()

Jquery

• ajax

python

• Built-in function

JAVA

API

Interface

• Serializable

java.lang

• java.lang?

java.util

• HashMap
• HashTable

Basic

• Class
• Environment
• Object
• Variable
• Operator
• Control-Flow
• Array
• Inheritance
• Abtract, Implement, Enum
• Exception
• String
• Nested Class
• Annotation
• Math
• Generic
• Collection
• Map
• Thread
• Garbage Collection
• JAVA 7, 8 변경점
• volatile
• IO

Expert

• JVM
• Runtime-Area

JSP

• 기본
• 쿠키
• 세션
• 서블릿
• JDBC
• MVC

Spring

• IoC
• Bean
• DI

WEB

• DOM
• Basic
• HTTP Request Message
• WAS

Database

• CASE expression
• Transaction
• Join
• Order By 및 쿼리문장순서