Become a Professional JavaScript Programmer

Compare for...in and a traditional for loop when iterating arrays. For...in may not preserve index order; a classic for loop guarantees 0-based indexing and ordered output using names.length.

Explore how JavaScript treats most things as objects, using strings to reveal properties and methods like length, char, and search via dot notation, and create object literals.

Learn how callbacks work in JavaScript and implement them to control results, passing a callback function to a method and handling the output flexibly.

Explore how to select and manipulate a dom element by id, access and set text, read and remove attributes, and inspect offset properties for positioning.

Discover how to use document.querySelector and document.querySelectorAll with css selectors to select single or multiple navigation items, replacing getElementById and iterating over the results.

Create a mini app that outputs text from an input field. Build a get-element utility, attach a keyup event, and show the input value in a nearby span.

Learn the basics of Jay Querrey, download and install the Jay Corey library, and write and include Jay Querrey code in web pages and templates.

Introduce section 1 by downloading the Jay Querrey library, learning the query syntax, using the J Querrey functions, and mastering selectors and events to interact with elements.

Discover jQuery core concepts for beginners, showing how this lightweight library makes JavaScript easier with DOM manipulation, CSS changes, events, and AJAX calls.

Discover how jQuery extends JavaScript with fewer lines and how to include it offline or via Google CDN. Learn selectors and events on HTML elements that respond to user actions.

Create a basic html page template and include the jquery library, then use the ready function to display output in the div with id output.

Explore how jQuery callback functions execute after an effect finishes to signal success or failure and control the next steps.

Explore jQuery effects by applying show, hide, and toggle to selected elements. Use optional durations in milliseconds and callbacks to signal completion, with practical ID-based examples.

Register click events with jQuery to apply fade toggle, fade in, and fade out on the output element, using 5 second durations and completion alerts.

explore the slide up, slide down, and slide toggle effects in jQuery, focusing on reusing the same arguments and modifying the effect name.

Learn how jQuery Ajax functions enable asynchronous updates and live feeds by repeatedly calling the server at intervals to read and modify a JSON file without refreshing the page.

Master jQuery effects such as hide, show, fade, and slide, with millisecond speed and a callback, and use jQuery css to get and set properties along with ajax requests.

Conclude by applying skills in setting up the query template file, using query syntax and ajax functions, and implementing event handlers and callback functions to build interactive web pages.

Explore four core sections, learn the course objectives, preview the hands-on project, and tour the Cloud Nine online IDE as you start building web apps with Bootstrap and MongoDB.

Develops an events tracking web app with routing from a list page to a detailed event page, pulling data from a database using a bootstrap template.

Review the course structure and learning goals, preview the final project, and confirm the cloud nine development environment, then dive into Node basics from square one.