Sorin Chircu

Sorin Chircu

Bucharest, Romania

393 Achievements

  • Programming AJAX
  • AJAX Concepts
  • Managing Data and Asynchronous Code
  • Accessible UI Patterns
  • Semantic HTML and WAI-ARIA
  • WCAG 2.0 (and Other Standards)
  • Introduction to Machine Learning
  • Remote Branches
  • Planning Our Service
  • Day 2: Advanced Selecting
  • Day 1: Joining Tables
  • Orientation: Selecting Data
  • Links
  • Lists
  • Branches on Git Hosting Services
  • Text
  • Branches
  • Get Involved in Open Source
  •  Working on a Team
  • Django Templates
  • Subqueries
  • Putting it all Together
  • User Messages in Spring
  • Getting Started with CRUD in Spring + Hibernate
  • Actions, Dispatch and Reducers. Oh my!
  • Modularizing the React Scoreboard Application
  • Data-Driven Application Design
  • Meet Peewee
  • Integrating Hibernate with Spring
  • Persisting Data with Hibernate
  • Getting Started with Hibernate
  • Data Persistence & ORMs
  • Getting Started with Redux
  • Using the MVC Architecture with Spring
  • Modeling, Storing, and Presenting Data with Spring
  • Creating Spring Controllers and Thymeleaf Views
  • Java Lists
  • Spring Components and Configuring Our App
  • Writing Your Own Java Annotation
  • Using Java's Built-In Annotations
  • Iteration
  • Bells and Whistles
  • Diving into Web Development
  • What to Test
  • How To Test
  • Why Test
  • Exploring Async/Await
  • Understanding Promises
  • Maintaining Secure Web Apps
  • Protecting Data and Keeping Attackers Out
  • Asynchronous JavaScript with Callbacks
  • What is Asynchronous Programming?
  • Building a Flashcard App
  • Time Complexity
  • Merge Sort and Linked Lists
  • The Merge Sort Algorithm
  •  Create a Web Presence on GitHub
  • Working By Yourself
  • Building a Linked List
  • Hello, GitHub!
  • Exploring Arrays
  • Ruby Syntax
  • Build a Grocery List Program
  • Ruby Hashes
  • Ruby Arrays
  • Practice Creating Scaffolds
  • Angular Form Validation
  • Angular Basic Forms
  • Scrum Artifacts
  • Scrum Events
  • Introducing Scrum
  • What is Agile?
  • Introduction to PHP for WordPress
  • WordPress Plugins
  • WordPress Themes
  • The WordPress Customizer
  • Managing Media in WordPress
  • Managing Content in WordPress
  • What Is WordPress?
  • Getting to Know REST APIs
  • Contact Forms & Mailers
  • Slim and Templates
  • Dependency Management
  • Executing Tests
  • Why We Test
  • Access for Everybody
  • Databases and International Concerns
  • Starting Right with PHP Best Practices
  • Creating Records
  • Sharing a Website
  • Project Setup
  • Handling Errors When Manipulating Data
  • Deleting Data from a Database
  • Updating Data in a Database
  • Adding Data to a Database
  • Page Layout
  • Browser Persistent Data with PHP
  • PHPDB Stage 5: Search
  • PHPDB Stage 4: Pagination with LIMITs
  • Captioning Video
  • Set Operations
  • Joining Table Data with SQL
  • PHPDB Stage 2: Querying the Database with PHP
  • Building a Collection
  • Building the Recipe
  • PHPDB Stage 1: Databases and PHP
  • Table Relationships
  • PHP Includes
  • Date and Time Functions
  • Aggregate and Numeric Functions
  • Reformatting User Input
  • Working with Text
  • Validating a Form with Regular Expressions
  • Ordering, Limiting and Paging Results
  • Finding the Data You Want
  • Media Basics
  • Database Keys
  • Database Normalization
  • Combining Array Methods
  • JavaScript Frameworks, Libraries, and Developer Roles
  • JavaScript Outside of the Browser
  • Pseudo-classes and Combinators
  • Important Skills For Professional Success
  • Improving Our Todo App
  • Services in Angular
  • Selector Basics
  • The Role of Selectors in JavaScript
  • Using Angular's Built-in Directives
  • Controllers and Scope
  • Getting Started with Angular
  • Common Commands
  • Directories and Files
  • The Command Shell
  • Model Administration
  • What a View
  • Gettin' CRUD-y With It
  • Our Diary App
  • Getting Modular with Mixins and Functions
  • Say Hello to Django
  • Cleaner Code
  • Be Assertive!
  • What Is Testing?
  • Dice Roller
  • Python: Advanced Objects
  • Array Manipulation
  • Exploration
  • Going Further with Grid Layout
  • Python: Inheritance
  • Python: Instant Objects
  • Adding 3D Effects with CSS
  • Getting Started with CSS Transforms
  • Getting Data from a Database
  • Transition Timing Functions and Delays
  • Getting Started with CSS Transitions
  • Data, Databases and SQL
  • Bug Reporting
  • Writing Manual Test Cases
  • Python Sets
  • Python Tuples
  • Python Dictionaries
  • Python Slices
  • Python Lists
  • Build an Application
  • Merging
  • Using Lists
  • Meet Lists
  • Practice Functions
  • All Together Now
  • Functions and Looping
  • Types and Branching
  • Meet Python
  • Structuring Tables
  • Flexible Sized Grids
  • Art Direction with the Picture Element
  • Treehouse Club - CSS
  • Sass Grid System
  • Using a jQuery Carousel
  • Add a Sticky Navigation Bar
  • Practicing Object Basics
  • Harnessing the Power of Objects
  • Combine and Minify Assets
  • Optimize Assets
  • Table Basics
  • Image Delivery with Srcset and Sizes
  • Understanding Classes
  • Why Object-Oriented Programming?
  • PHP Internal Functions
  • PHP Returns & Closures
  • PHP Functions Basics
  • PHP Loops
  • PHP Arrays
  • PHP Conditionals
  • PHP on the Web
  • Daily Exercise Program
  • Unit Converter
  • Regular Expressions
  • Array Iteration
  • Callbacks and the DOM
  • Callbacks with Timers
  • Sweeping Vues: Loops, Methods, Directives
  • What a Beautiful Vue!
  • Introducing Grid Layout
  • Introduction to Callback Functions
  • HTML First
  • Beginning HTML and CSS
  • Meet Objects
  • Introducing Vue
  • Going Further with Routing
  • Navigating, Nesting and Redirecting Routes
  • Getting Started with React Router
  • Practicing Classes
  • Measuring Performance
  • Discovery
  • JavaScript Objects and Conditionals
  • Getting to Know PHP
  • Refining the App
  • Building the Application
  • JavaScript Arrays and Loops
  • JavaScript Functions
  • ADS Writing and Preparation
  • Introduction to UI Design
  • Adding the Game Logic
  • Making the Game Interactive
  • Rendering the Game
  •  Building Constructor Methods and Generating Objects
  • Setting up with Create React App
  • React Component Patterns
  • Introducing jQuery Plugins
  • Stateful Components and Lifecycle Methods
  • Getting the REST You Need 2
  • Setting Up an Angular Application
  • Managing State and Data Flow
  • Build Modular Interfaces with Components
  • Stateful Components
  • Introducing Props
  • Introduction to HTTP
  • Thinking in Components
  • First Steps in React
  • Introducing 'Four in a Row'
  • Playing a Counting Game
  • GET and POST Requests in a Browser
  • Debugging, Best Practices, and Production
  • Refactoring with Sass
  • Perfecting the Prototype
  • Using your New Tools
  • Reduction and Aggregation
  • Meet Streams
  • Installing Sass and Setting up the Project
  • Introduction
  • Write Smart and Efficient CSS with Sass
  • Planning for Performance
  • Getting Started with Java
  • Security: Concerns
  • Test Drive
  • Meet Selenium
  • Transitions and Transforms
  • Creating an SVG
  • Introduction to SVG
  • Workflows
  • Working With Remote Repositories
  • Merging
  • Branches
  • Getting Started With Git
  • Why Version Control Matters
  • Completing and Testing the API
  • Next Steps
  • Improve Your Workflow with Sass
  • GitHub and Other Remote Repositories
  • Managing Committed Files
  • First Commits
  • Data Types and Variables
  • Getting Started with Sass
  • Add Reusable Logic to Your Sass
  • Advanced Selectors
  • Going Further with Attribute Selectors and Pseudo-Classes
  • Building Forms With Bootstrap
  • Using Bootstrap Components
  • Responsive Layouts With the Bootstrap Grid
  • Choosing Options
  • Organizing Forms
  • Form Basics
  • Selectors - Beyond the Basics
  • Welcome to the Treehouse Club
  • Communicating with Mongo Through Mongoose
  • Responsive Patterns
  • Media Queries
  • Getting Started with MongoDB
  • Improving Our Tests
  • Behavior Driven Development with Mocha & Chai
  • Fundamental Concepts
  • Introducing Unit Testing
  • Designing with the Latest Features
  • Methods
  • Object-Oriented Programming
  • Perfect
  • Thinking in Components
  • Perform
  • Console I/O
  • Prepare and Plan
  • Classes
  • Objects and New Collection Types
  • The Cooler Parts of ES2015
  • ES2015 Basics
  • Modeling Data for the API
  • Building API Routes in Express
  • Building a REST Service
  • Express Middleware
  • Sessions and Cookies
  • User Registration and Login
  • What is Authentication?
  • Go Further With Mongo
  • Working With Collections
  • Understanding MongoDB
  • Serving Static Files in Express
  • Applying Express Knowledge
  • Middleware
  • Deeper into Routing with Express
  • Using Templates with Express
  • Basic Layout
  • Getting to Know Bootstrap 4
  • Getting Started with Express
  • Responsive Theory
  • Improving your Gulp Workflow
  • Compile Sass with Gulp
  • Gulp your JavaScript workflow!
  • Welcome to Gulp.js
  • Updating and Uninstalling Packages with npm
  • Installing Packages with npm
  • First Steps in React
  • Building a Layout with Flexbox
  • Flexbox Properties
  • What is npm?
  • Understanding Flexbox
  • The Box Model
  • Understanding Values and Units
  • HTTP Methods and Headers
  • Creating a Basic Template Engine in Node.js
  • Handling Routes in Node.js
  • Creating a Simple Server in Node.js
  • Creating a Command Line Weather Application
  • Handling Errors in Node
  • Getting Data From an API With Node
  • Introduction to Node.js
  • Getting Started with CSS
  • Basic Selectors
  • JavaScript Tools and Workflows
  • JavaScript is Everywhere
  • Going Further with HTML
  • Images, Text and Links
  • Structuring Your Content
  • Adding a New Web Page
  • Make It Beautiful with CSS
  • HTML: The Structural Foundation of Web Pages and Applications
  • Getting Familiar with HTML and CSS
  • Positioning Page Content
  • CSS Layout Project
  • Page Layout with the Float Property
  • Controlling Layout with CSS Display Modes
  • Getting Started with CSS Layout
  • Getting Started With HTML
  • AJAX and APIs
  • jQuery and AJAX
  • Programming AJAX
  • AJAX Concepts
  • Working with jQuery Collections (2017)
  • Understanding jQuery Events and DOM Traversal (2017)
  • Introducing jQuery (2017)
  • Getters and Setters
  • Working with Classes in JavaScript
  • Object Basics
  • Introduction to Object-Oriented JavaScript
  • Improving the Application Code
  • Editing and Filtering Names
  • Adding and Removing Names
  • Traversing the DOM
  • Responding to User Interaction
  • Making Changes to the DOM
  • Getting a Handle on the DOM
  • The Browser Environment
  • Create Function Using Arrow Syntax
  • Using Template Literals
  • Defining Variables With let and const
  • JavaScript Objects
  • JavaScript Arrays
  • JavaScript Loops
  • JavaScript Functions
  • JavaScript Conditional Statements
  • JavaScript Numbers
  • JavaScript Variables
  • Introducing JavaScript
  • Finishing the Game
  • Introducing JavaScript
  • Newbie