May 2025

• 10 Nested elements in React
• 09 Custom Components in React
• 08 Importing React Components
• 07 React components
• 06 React elements
• 04 Attributes in JSX
• 04 Multiline JSX Components in React
• 04 React Without JSX
• 04 First JSX Element in React
• 04 JSX and index.js with createRoot in React
• 03 Create React App
• 02 Constructor Functions and new Function in JavaScript
• 01 Showing a Modal When the Cursor Leaves the Page in JavaScript
• 01 Opening a Modal at the Bottom of the Page in JavaScript
• 01 Opening a Modal Window with a Timer in JavaScript
• 01 Working with Modal Window Behavior in JavaScript
• 01 Classes for Modal Triggers in JavaScript

April 2025

• 29 ScrollTop in JavaScript
• 29 ClientWidth and ClientHeight in JavaScript
• 29 Window Object in JavaScript
• 29 Date() in JavaScript
• 29 setTimeout and setInterval in JavaScript
• 29 Event Delegation in JavaScript
• 28 ClassList.contains() in JavaScript
• 28 ClassList.toggle() in JavaScript
• 28 ClassList.remove() in JavaScript
• 28 ClassList.add() in JavaScript
• 28 ClassList.item() in JavaScript
• 28 Working with classList in JavaScript
• 27 Iterable Objects in JavaScript
• 26 Property Descriptors and Useful Methods in JavaScript
• 25 Live Collections in JavaScript
• 24 Optional Chaining Operator (?.) in JavaScript
• 23 Nullish Coalescing Operator (??) in JavaScript
• 22 Async, Defer, and Dynamic Script Loading
• 21 Recursion in JavaScript
• 20 Navigating the DOM in JavaScript
• 18 Event bubbling in JavaScript
• 17 Event capturing in JavaScript
• 16 preventDefault() method in JavaScript
• 15 stopPropagation() method in JavaScript
• 14 Event Delegation in JavaScript

March 2025

• 31 Event properties in JavaScript
• 30 The addEventListener() Method in JavaScript
• 30 How Closures Work in JavaScript
• 30 Event attributes in JavaScript
• 30 Events in JavaScript
• 30 The before() and after() Methods in JavaScript
• 30 Creating Text Nodes with createTextNode in JavaScript
• 30 append() and prepend() Methods in JavaScript
• 29 The createElement() Method in JavaScript
• 28 The style Object in JavaScript
• 27 The getElementsByClassName() Method in JavaScript
• 26 The getElementsByTagName() method in JavaScript
• 25 External lexical environment in JavaScript
• 23 The classList Property in JavaScript
• 22 The querySelector() Method in JavaScript
• 17 Common Mistakes with Closures in JavaScript
• 16 Where Closures Are Used in JavaScript
• 14 What is closures in JavaScript
• 12 Code Interpreter
• 11 Closure and lexical environment in JavaScript
• 10 The cssText property in JavaScript
• 09 The remove() method in Javascript
• 08 The replaceWith() method in Javascript
• 07 The innerHTML Property in JavaScript
• 06 The textContent property in JavaScript
• 05 The insertAdjacentHTML() Method in JavaScript
• 01 Mixins in SCSS/SASS Preprocessors

February 2025

• 20 Code Fragmentation in SASS Preprocessor
• 18 Nesting in the SASS preprocessor
• 16 Dynamic Typing in JavaScript
• 15 The Object.create Method in JavaScript
• 14 The setPrototypeOf method in JavaScript
• 09 Basics of the SASS preprocessor
• 08 NPM Guide
• 07 Spread operator in JavaScript

January 2025

• 30 Array Methods in JavaScript
• 25 Destructuring Objects in JavaScript
• 22 Callback functions in JavaScript
• 21 round() function in Python
• 21 Working with Numbers in Python
• 16 String and Number Methods in JavaScript
• 16 Properties of strings and numbers in JavaScript
• 15 The return operator in Javascript
• 15 Arguments in JavaScript Functions
• 14 Function Expression in JavaScript
• 14 Function Declaration in JavaScript
• 14 Arrow Functions in JavaScript
• 10 Loops in JavaScript
• 09 Basic data types in Python
• 09 Comparison Operators in JavaScript
• 09 Arithmetic Operators in JavaScript
• 08 Interpolation in JavaScript
• 08 The document.write Method in JavaScript
• 08 The typeof() operator in JavaScript
• 08 Alert, Prompt and Confirm in JavaScript
• 06 The main() Function in C
• 06 Hello, World! in C
• 04 Commands from VimTutor

December 2024

• 26 Grid Micro Layouts
• 25 Using Auto Margins in Flexbox
• 25 Applying Flexible Sizes in Flexbox
• 24 Base Sizes of Flex Items
• 14 The Display property in CSS
• 02 Local Lexical Scope in JavaScript

November 2024

• 27 Page grids and document flow
• 23 The align-content Property in CSS
• 23 Set in JavaScript
• 23 Map in JavaScript
• 23 Code Compiler
• 22 Background in CSS (Part 1)
• 21 The justify-content Property
• 17 Objects in JavaScript
• 17 Arrays in JavaScript
• 14 Text Styling in CSS
• 13 The flex-wrap Property
• 12 Data types in JavaScript
• 11 Functions in JavaScript
• 11 Box Model in CSS
• 03 flex-direction in CSS
• 03 Cross Axis in Flexbox

October 2024

• 29 Variables in Sass
• 29 Variables in JavaScript
• 13 Flexbox Basics
• 12 Margin and Padding in CSS
• 12 Grid In Css
• 08 Value Types in CSS
• 08 Units of Measurement in CSS
• 06 Nested Selectors in CSS
• 03 Initial Git Setup
• 03 Git Branch Commands
• 03 CSS Selectors
• 03 Arrays and Pseudo-Arrays in JavaScript

September 2024

• 30 Background in CSS 2

May 2024

• 05 Switch / Case in JavaScript
• 02 Ternary Operator in JavaScript

March 2024

• 25 if / else in JavaScript
• 05 Logical Operators in JavaScript