Getting started with JavaScript

Explore how javascript works, its basics, and how to start using it in web applications, with hands-on examples to practice and build dynamic features.

Explore essential JavaScript tools and resources, using brackets with live preview and Chrome dev tools, and the console to write, test, and debug code, or use your own editor.

Learn how to structure your HTML and JavaScript files, link external CSS and JS, and use dev tools to run and debug your first JavaScript code.

Explore JavaScript primitives including strings, numbers, and booleans, and learn to use the console and dev tools to run code and view browser outputs.

Identify JavaScript primitive types: string, number, boolean, undefined, null using typeof, and learn how quotes define strings, how parseInt converts strings to numbers, and how saving a file aids debugging.

Learn how variables in javascript hold values of primitive types for reusable content and to avoid retyping hello world. Understand naming rules, case sensitivity, and reserved words.

Learn how JavaScript numeric operators perform calculations with numbers, including assignment, addition, subtraction, multiplication, and division, and how variables store values for debugging with console.log.

Explore JavaScript comparison operators and booleans to compare values. Learn how strict and loose equality work, and how numbers and strings compare using greater than, less than, and equal checks.

Explore how JavaScript uses multiple comparison operators, including and and or, to evaluate boolean expressions and influence conditional statements across values and even strings.

Learn how JavaScript conditional statements use comparison operators to run code when conditions are true, with if, else, and else if, and practical variable examples.

Explore conditional statements in JavaScript by using the ternary operator and switch statement. Set and compare A and B values, handle default cases, and see how break controls flow.

Explore JavaScript objects by building a literal object with properties like surname and age, access values with dot and bracket notation, and update or extend objects dynamically.

Create arrays with literals or the new Array syntax, access elements by zero-based index, and inspect their length. Learn that arrays are a type of object and explore built-in methods.

Explore built-in array methods in JavaScript, from push and pop to shift, unshift, reverse, sort, and slice, and learn how to add, remove, and extract values.

Explore how JavaScript loops from for and while to do while and for each, run code multiple times, iterate arrays, log outputs, and avoid infinite loops.

Explore how to define and call JavaScript functions, pass arguments, return values, and use local versus global variables to create reusable, time-saving code.

Learn to bring together variables, conditions, and functions in JavaScript to build dynamic logical flows, perform arithmetic, manage arrays with push, and iterate with loops.