Fan-favorite Star Wars The Clone Wars Character Officially Confirmed for New Game

Your Database Is Making 4 Promises. Here's What ACID Means.

Introduction Your program keeps opening transactions. A signup writes a new user row. A checkout debits one account and credits another. A form submission updates three related tables at once.

• Atomicity ensures all parts of a transaction happen together as one unit
• If any part fails, the entire transaction is rolled back to maintain consistency
• ACID guarantees Atomicity, Consistency, Isolation, and Durability for transactions

1h ago ·dev.to

Block Scope in JavaScript

Block scope is an important concept in JavaScript. It means that a variable can be accessed only inside the block where it is declared. A block is usually written using curly braces { } .

1h ago ·dev.to

Understanding chmod Without Memorizing Numbers

How Linux file permissions actually work under the hood, why symbolic mode is your best friend, and how to stop blindly typing chmod 777. Every Linux engineer has been there.

• Symbolic mode simplifies chmod by using letters instead of numbers.
• File mode string in ls -l shows read/write/execute permissions.
• Chmod u+x adds execute permission for user without changing others.

1h ago ·dev.to

How Python Takes Out Its Own Garbage

Python manages memory automatically, freeing developers from manual allocation and deallocation. It does this through two complementary mechanisms: reference counting and a generational garbage…

1h ago ·dev.to