Javascript Crash Course: Go From Zero to Basics, Dom and OOP

Connect JavaScript to HTML by creating an index.html, wiring a script file, and printing text on the page with document.write or console output.

Explore JavaScript's alert, prompt, and confirm to interact with users, display messages, collect input, and log results to the console.

Learn to edit the dom with JavaScript by selecting elements using getElementById, getElementsByClassName, and getElementsByTagName, then update innerText across single and array elements.

Learn to modify HTML using JavaScript by removing, replacing, and adding child elements within a parent, and wiring on click actions to update or replace content.

Build a real-world JavaScript calculator by creating a form with text inputs, reading values as numbers, and performing plus, minus, multiply, and divide with division-by-zero error handling.

Explore how to use a switch statement in JavaScript to replace long if-else chains, with cases, breaks, and a default action, demonstrated through age checks and number matching.

Learn how to use while and do-while loops in javascript to perform repetitive tasks, increment values, and print sequences from 100 to 1000 with practical examples.

Explore how to use for loops and while loops in JavaScript to control flow, increment values, and print arrays, including nested looping patterns.

Learn to use break and continue in JavaScript loops, exploring how break stops a loop and continue skips an iteration, with while and for examples to control flow.

Explore JavaScript for in and for of loops by iterating arrays and accessing elements with 0-based indices. Practice nested loops and combining for and while to multiply indices and values.

Discover how to create and call functions in JavaScript to organize code and perform actions. Learn that functions can be called multiple times, placed in loops, and reused with functions.

Learn how to define functions that accept arguments, print numbers in a range, and return values in simple cases, including a number times 10.

Learn to build a basic JavaScript sorting function that sorts an array using nested loops, swaps elements to place the smallest at each step, and prints the sorted result.

Explore how to connect five functions in JavaScript, including sorting and printing with a display function, to show array elements and indexes before and after sorting.

Explore how a self-calling Javascript function implements recursion to generate Fibonacci numbers, using base cases and the sum of the two previous numbers, and observe performance implications.

Create and manipulate JavaScript objects by using object literals and dot notation, add and access properties like hours and name, and iterate properties with for-in to understand object structure.

Learn how to create a JavaScript constructor function that builds objects and auto-populates properties with this, using examples for hours and years and a three-property object (string and number).

Explore how to define and call functions inside objects in JavaScript, turning them into interactive methods and enabling multiple functions within a single object for richer programs.

Explore the JavaScript Math object, its constants and functions for rounding, square roots, maxima, and more, and learn to apply them in programs and calculators.

This lesson introduces JavaScript objects with the date object, creating a new date, and accessing its current date components using getDay, getMonth (zero-based), and getFullYear for time and date checks.