Clean Code/ Refactoring/ Secure Coding

✅ Clean Code

code with better readability

• method naming
• no error
• no repetition
• dependency ❌
• one function per one class/method
• adequate spacing between functions

1. Naming

   use explicit names for variable, class, method
   

2. Comment

• only comment when necessary

1. Aesthetics

• adequate indent, spacing
• simple, repeated patterns

1. Making control flow easy to read

• left: variable, right: number if(length>10)
• use true than false if(a == b)

1. Function

• smaller the function, better
• one job per function

✅ Refactoring

legacy code 👎🏻 ➡️➡️➡️➡️➡️ clean code 👍🏻
better code, maintaining the same functions
make software better understandable, easier to maintain
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code inspection

check already developed code to update to cleaner code

• remove repeated code
• long methods
• huge class
• swtich👎🏻 override👍🏻
• refactor prodedral programming(절차지향)

✅ Secure Coding

elminiate potential risk in code

• SQL injections
• URL parameter