#javascript

Learn JS Series (#30) - Mini Project: A Small Functional Utility Library What will I learn You will build a small, reusable functional utility library from scratch, tying together the whole of Phase 2;

Learn JS Series (#29) - Memoization: Trading Memory for Speed with Closures What will I learn You will learn what memoization is: caching a function's results so repeat calls are instant; why it only works

Learn JS Series (#28) - Pure Functions and Side Effects: The Foundation of Predictable Code What will I learn You will learn the exact definition of a pure function, and its two non-negotiable requirements;

Learn JS Series (#27) - Function Composition: Building Pipelines from Small Functions What will I learn You will learn what function composition is: combining small functions into a bigger one; the difference

Learn JS Series (#25) - IIFEs and the Module Pattern (the Pre-2015 Way to Get Privacy) What will I learn You will learn what an IIFE is, and the syntax trick that makes it work; why IIFEs were essential

Learn JS Series (#24) - Recursion: Base Cases, the Call Stack, and Stack Overflows What will I learn You will learn what recursion is, and the two ingredients every recursive function needs; how the call

Learn JS Series (#23) - call, apply, and bind: Controlling this Explicitly What will I learn You will learn exactly what call, apply, and bind do, and how they differ; how to borrow a method from one object

Run verifiable Hive raffles — a future block's ID picks the winner, no trust required, anyone can check.

Learn JS Series (#20) - Default, Rest, and Spread: Flexible Function Signatures What will I learn You will learn default parameters in depth, including defaults computed from earlier parameters; the rest

Learn JS Series (#18) - Higher-Order Functions: Functions That Take or Return Functions What will I learn You will learn the precise definition of a higher-order function, and why the idea matters far

Learn JS Series (#17) - Closures: The Single Most Important Idea in JavaScript What will I learn You will learn precisely what a closure is: a function bundled with the variables of its birthplace; how

Learn JS Series (#16) - Arrow Functions vs function: Syntax, this, and When Each Wins What will I learn You will learn the full arrow-function syntax, from the verbose form all the way down to the one-liner;

Learn JS Series (#15) - First-Class Functions: Passing, Returning, and Storing Functions What will I learn You will learn what "first-class functions" actually means, and why it is the key idea

Learn JS Series (#14) - Mini Project: A Command-Line Tip Calculator What will I learn You will build a complete, real command-line program from scratch, tying together all of Phase 1; how to read the arguments

Real-time Hive blockchain explorer, no backend /Explorador de Hive en tiempo real, sin backend

Learn JS Series (#13) - Truthiness, Equality, and Coercion: == vs === Done Properly What will I learn You will learn the exact list of falsy values and why everything else is truthy; how JavaScript coerces

Learn JS Series (#12) - Objects: Key-Value Data, Dot vs Bracket Access, and Nesting What will I learn You will learn how to model real-world things as objects with named properties; the difference between

Learn JS Series (#11) - Arrays: The Workhorse Data Structure and Its Core Methods What will I learn You will learn how to create arrays and access their elements, including the modern .at(); why arrays

Learn JS Series (#10) - Scope and the Temporal Dead Zone: How JavaScript Finds Your Variables What will I learn You will learn what scope is, and the three kinds JavaScript has: global, function, and block;

Learn JS Series (#9) - Functions: Declarations, Parameters, Return Values, and Hoisting What will I learn You will learn the three ways to create a function, and how they differ; how parameters, arguments,