Programming FlashCards - Learn Coding Concepts

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Java Stream Reduce

Use of reduce() method in Java Streams to perform a reduction operation on stream elements, combining them into a single result value.

Linux

Pipe Redirection

Use pipe (|) to send output of one command as input to another, enabling powerful command chaining and data processing in Linux shell scripting.

Golang

Go Channel Select

Demonstrates how select statement allows concurrent communication and handling of multiple channel operations in Go

CSS

CSS Specificity

Understand how CSS determines which styles are applied when multiple conflicting rules target the same element

Ruby

Ruby Proc

Procs are first-class objects in Ruby that encapsulate blocks of code, allowing dynamic method creation and functional programming techniques

TypeScript

Type Inference Magic

TypeScript can automatically infer variable types based on their initial assignment, reducing explicit type annotations.

TypeScript

Type Assertions

Allows explicitly telling the TypeScript compiler to treat a value as a specific type, overriding its inferred type

TypeScript

Readonly Modifier

Prevent modification of object properties after initialization, ensuring immutability and type safety in TypeScript.

TypeScript

Never Type

Represents a type that should never occur, useful for exhaustive type checking and eliminating impossible scenarios

TypeScript

Mapped Types

Transform existing types by mapping over their properties to create new types with modified characteristics

TypeScript

Index Signatures

Define flexible object types with dynamic key and value types, allowing for flexible key-value pair structures in TypeScript

TypeScript

Discriminated Unions

A powerful TypeScript pattern that allows creating type-safe unions with a common property to distinguish between different object shapes.

TypeScript

Conditional Types

Advanced type system feature in TypeScript that allows creating types that depend on type conditions, enabling more flexible and dynamic type definitions.

Rust

Rust Traits

Traits in Rust define shared behavior across different types, similar to interfaces in other languages, enabling polymorphism and code reuse.

Rust

Rust Pattern Matching

Explore Rust's powerful pattern matching with match expressions, allowing complex conditional logic and destructuring in a concise, expressive way.

Rust

Rust Ownership

Rust's unique memory management system where each value has a single owner, preventing memory leaks and ensuring memory safety at compile-time.

Rust

Rust Ownership Rules

Rust's unique ownership system ensures memory safety without garbage collection by enforcing strict rules about variable ownership and borrowing.

Rust

Rust Ownership Borrowing

Demonstrate Rust's unique ownership system with borrowing rules, showing how references prevent data races and ensure memory safety.

Rust

Rust Match Expressions

Powerful pattern matching construct that allows exhaustive checking and complex destructuring of values in a concise and safe manner.

Rust

Rust Match Expression

Powerful pattern matching construct that allows exhaustive checking and complex value destructuring in Rust

Ruby

Ruby Variable Swap

Ruby allows elegant, one-line variable swapping without using a temporary variable, demonstrating the language's concise syntax.

Ruby

Ruby Symbol

Symbols are immutable, memory-efficient identifiers in Ruby, often used as hash keys and method names with low memory overhead

Ruby

Ruby Symbol to Proc

A concise way to convert a method into a proc, allowing compact method calls on collections using the &: shorthand.

Ruby

Ruby Method Chaining

Demonstrate Ruby's powerful method chaining with enumerable methods to transform and filter collections efficiently

Ruby

Ruby Enumerable

Explore the powerful Enumerable module in Ruby that provides collection traversal and searching methods like map, select, and reduce.

Ruby

Ruby Enumerable Inject

A powerful method for reducing an array to a single value by applying a cumulative operation across all elements.

Ruby

Ruby Enumerable Each

Iterate through collections using .each method, which allows performing an action on every element without creating a new array

Ruby

Ruby Blocks

Blocks are anonymous functions passed to methods, enabling powerful iteration and functional programming patterns in Ruby.

Ruby

Ruby Array Shuffle

Randomly reorder elements in an array using the .shuffle method, which returns a new randomized array without modifying the original

Redis

Redis Transactions

Redis Transactions allow executing multiple commands atomically, ensuring all commands are processed together or none at all.

Redis

Redis Sorted Sets

Ordered collection in Redis where each member is associated with a score, allowing efficient ranking and range queries.

Redis

Redis Pub/Sub

Redis Publish/Subscribe messaging paradigm allows sending messages between publishers and subscribers across different channels in real-time communication.

Redis

Redis Lua Scripting

Execute complex operations atomically using Lua scripts, allowing multiple Redis commands to run as a single transaction with reduced network overhead.

React

useEffect Basics

Learn how useEffect manages side effects like data fetching, subscriptions, or DOM manipulations in React functional components

React

useCallback Memoization

Prevent unnecessary re-renders by memoizing callback functions, optimizing performance in React components with complex child components.

React

useCallback Hook

Memoizes callback functions to prevent unnecessary re-renders and optimize performance in React components

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