TLDR;
This complete JavaScript tutorial guides beginners from zero coding knowledge to building games, projects, and websites using JavaScript. It covers essential concepts like variables, data types, operators, conditional statements, loops, strings, functions, classes, objects, and asynchronous programming. The tutorial also includes practical exercises, game development, and building a currency converter app.
- JavaScript basics for beginners
- Building games and projects
- Asynchronous programming and API usage
Introduction [0:00]
The tutorial aims to teach JavaScript coding from a beginner level, enabling students to build games, projects, and websites. The course includes practice questions and game development, culminating in a currency converter app. Slides and notes are available for download. JavaScript is highlighted as a popular language in the tech industry.
What is JavaScript? [1:26]
JavaScript is a programming language used to instruct computers and machines. Computers take input in the form of code, which is then processed to produce an output. The tutorial demonstrates writing JavaScript code directly in the browser's console, using the alert function to display pop-up messages.
Code Editor [7:27]
A code editor is a digital notebook for coding, with VS Code (Visual Studio Code) being a popular choice due to its free availability, popularity, and versatility across multiple languages. The tutorial guides through installing VS Code and creating a first JavaScript file.
First JavaScript Code [10:29]
The first JavaScript program involves using console.log to print messages to the console. The tutorial explains how to write and execute this code within VS Code, linking the JavaScript file to an HTML file to display the output in a browser.
Variables [23:15]
Variables are containers for storing data, similar to labelled boxes. The value of a variable can change over time. The tutorial explains how to declare variables in JavaScript, including naming conventions and the use of let, const, and var keywords.
Data Types
JavaScript has primitive and non-primitive data types. Primitive types include number, string, boolean, null, undefined, bigint, and symbol. Non-primitive types include objects, arrays, and functions. The tutorial explains each data type with examples, including how to declare and use them in JavaScript.
Operators [1:21:09]
Operators perform operations on data. The tutorial covers arithmetic operators (+, -, *, /), modulus, exponentiation, assignment operators (+=, -=), comparison operators (==, ===, !=, !==, >, <, >=, <=), and logical operators (&&, ||, !).
Conditional Statements [1:55:19]
Conditional statements (if, else if, else) allow executing different code blocks based on certain conditions. The tutorial explains how to use these statements to implement decision-making logic in JavaScript. It also introduces the ternary operator as a shorthand for simple if-else conditions.
Practice Questions [1:12:50]
The tutorial includes practice questions to reinforce the concepts learned. One question involves creating an object to store product information, while another involves writing code to assign grades to students based on their scores.
Loops [2:30:35]
Loops are used to execute a block of code repeatedly. The tutorial covers for loops, while loops, do-while loops, for-of loops, and for-in loops. It explains the syntax and usage of each loop type, along with examples.
Strings [3:42:54]
Strings are sequences of characters used to represent text. The tutorial explains how to create strings, access individual characters, and use string methods like toUpperCase, toLowerCase, trim, slice, concat, replace, and charAt.
Arrays [56:52]
Arrays are collections of items stored in a linear fashion. The tutorial explains how to create arrays, access elements by index, modify array elements, and use array methods like push, pop, toString, concat, unshift, shift, slice, and splice.
DOM (Document Object Model) [5:41:13]
The DOM is a tree-like structure representing the HTML elements in a web page. The tutorial explains how to access and manipulate DOM elements using JavaScript, including methods like getElementById, getElementsByClassName, getElementsByTagName, querySelector, and querySelectorAll.
DOM Manipulation [6:12:50]
DOM manipulation involves changing the content, style, and attributes of HTML elements using JavaScript. The tutorial covers properties like innerHTML, textContent, and style, as well as methods like setAttribute, createElement, appendChild, insertBefore, and removeChild.
Events [7:23:50]
Events are actions or occurrences that happen in the browser, such as button clicks, mouseovers, and form submissions. The tutorial explains how to handle events using inline event handling and event listeners, and how to access event object properties.
Rock Paper Scissors Game [7:46:38]
The tutorial guides through building a Rock Paper Scissors game using HTML, CSS, and JavaScript. It covers creating the game layout, implementing the game logic, and updating the UI based on the game results.
Asynchronous JavaScript [9:22:17]
Asynchronous programming allows executing code without blocking the main thread, improving performance and responsiveness. The tutorial explains asynchronous concepts like callbacks, callback hell, promises, promise chaining, and async/await.
API (Application Programming Interface) [10:37:55]
APIs are interfaces that allow different applications to communicate with each other. The tutorial explains how to make API calls using the Fetch API, handle responses, and work with JSON data. It also covers HTTP verbs and response status codes.
Currency Converter App [11:06:15]
The tutorial guides through building a currency converter app using HTML, CSS, and JavaScript. It covers fetching exchange rates from an API, updating the UI with the converted values, and handling user input.
