Learn JavaScript

Learn JavaScript from the basics to modern patterns for interactive web development: environment setup, variables, data types, control flow, functions, arrays, objects, strings, ES modules, destructuring, closures, DOM API, event handling, Fetch API, async/await, form validation, Web Storage, debugging, tooling, bundlers, and performance optimization with production-ready JavaScript code across 23 episodes.

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Learn JavaScript - Pre-Requisites Skills & Environment Setup

Before writing JavaScript, you need to master the basics of HTML, programming logic, and prepare a modern toolchain such as Node.js, a code editor, and a browser. In this episode you will also create your first JavaScript project and verify your entire working environment.

August 10, 2026

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Learn JavaScript - Introduction to JavaScript and Its Ecosystem

This episode opens the series with the history of JavaScript, the relationship between JavaScript and the ECMAScript standard, and a map of the modern ecosystem such as Node.js, npm, bundlers, and frameworks. You also run your first program and understand why JavaScript succeeded in ruling the web.

August 10, 2026

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Learn JavaScript - Variables, Data Types, and Operators

This episode dissects the three most basic building blocks of JavaScript: variable declaration with let and const, the seven primitive data types, and arithmetic, comparison, and logical operators. You also learn about type coercion, a frequent source of bugs.

August 10, 2026

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Learn JavaScript - Control Flow: if, switch, and Loops

This episode covers how a program makes decisions and repeats work: branching with if, else if, and switch, plus loops with for, while, do...while, and for...of. You also learn break, continue, and modern loop patterns.

August 10, 2026

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Learn JavaScript - Functions and Variable Scope

This episode covers how to wrap logic into reusable functions: function declarations, parameters, and return values. You also understand global, function, and block variable scope, plus the hoisting behavior that often confuses beginners.

August 10, 2026

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Learn JavaScript - Arrays, Objects, and Basic Data Structures

This episode covers JavaScript's core data structures: arrays for ordered collections of values, objects for modeling entities, and how to build realistic nested data. You also get to know Set and Map as efficient additional data structures.

August 10, 2026

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Learn JavaScript - String and Date Manipulation

This episode covers text and time processing: string methods for searching, slicing, and replacing, the Date object for date-based logic, and Intl for formatting dates and numbers according to locale. You build realistic and tested utilities.

August 10, 2026

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Learn JavaScript - Advanced Functions, Default Parameters, Rest, and Spread

This episode takes functions to a professional level: default parameters for fallback values, the rest parameter for capturing many arguments, and the spread operator for combining arrays and objects. You compose flexible, concise functions in ES6 style.

August 10, 2026

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Learn JavaScript - Arrow Functions and Higher-Order Functions

This episode introduces two core concepts of modern JavaScript: concise arrow functions with lexically bound this, and higher-order functions that accept or return other functions. You build habits around callbacks and functional data transformation.

August 10, 2026

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Learn JavaScript - Array Methods: map, filter, reduce, find

This episode dissects the four most frequently used array methods: map for transformation, filter for filtering, find for searching, and reduce for aggregation. You also learn to chain methods and get to know some and every for condition testing.

August 10, 2026

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