Computer Science·April 7, 2025
Exception Handling
Doing chemistry(try), Fire!(catch), Cleanup(finally).
#CS#Language#ErrorHandling
Writing about development and technology.
Doing chemistry(try), Fire!(catch), Cleanup(finally).
C's notorious barrier. Pointers directly manipulate memory addresses—powerful but dangerous. References are the safe version. The terror of Segfault and nightmare of nullptr.
Janitor cleaning up developer's mess. Convenient, but sometimes blocks the hallway (Stop The World).
Preventing Stack Overflow. Just pass the baton and go home. Why compilers love TCO.
Opening Russian Dolls. Without Base Case, it's Stack Overflow hell.
Vars pulled to the top? Magic illusion caused by impatient JS Engine's 'Pre-reading'.
Cooking Class (OOP) vs Math Class (FP). Eliminating bugs by rejecting State.
Encapsulation, Inheritance, Polymorphism, Abstraction. Understanding via Lego Robots.
Apple + 3 = ? Error means Strong. 'Apple3' means Weak. The magic of [] + [] = 0 and why TypeScript is our savior.
When is type decided? Strict Bureaucrat (Static) vs Flexible Startup (Dynamic).
Developers must use Mac? That was before WSL2. Planting Linux Kernel inside Windows.
What if Airbag deploys late due to Windows Update? It doesn't mean 'Fast'. It means 'Deterministic'.
Conductor of VMs. Is the CEO running it directly (Type 1), or hiring a manager (Type 2)?
Running Windows & Linux on my MacBook. Foundation of Cloud Computing (AWS).
What if pull the plug while copying files? OS's habit of logging to prevent corruption.
Filename is just a shell in Linux. The real identity is inode number. Secret of ls -i.
HDD is just a giant field of 0s and 1s. Magic that creates 'File' and 'Folder'.
PC froze. Mouse moves but clicks don't work. HDD led blinking like crazy. This is Thrashing.
Desk is full. Which book to throw away? Oldest? Least used? OS's decision making.
If Paging is mechanical chopping, Segmentation is meaningful organization. Managing by Code, Data, Stack.
