Roberto Cadenas

Roberto Cadenas

Torrejón de Ardoz

23,019

Total Points

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Skills & Experience

  • Spoken Languages

    • Spanish
    • English

259 Achievements

  • Working with 'for' Loops
  • What is npm?
  • Simplify Repetitive Tasks with Loops
  • Arrow Functions
  • Pass Information Into Functions
  • Create Reusable Code with Functions
  • The Math Object
  • Working with Numbers
  • Making Decisions in Your Code with Conditional Statements
  • Working With Strings
  • Storing and Tracking Information with Variables
  • Hello, JavaScript!
  • PHP Inventory
  • PHP Includes
  • GitHub and Other Remote Repositories
  • Managing Committed Files
  • First Commits
  • Building a Collection
  • Building the Recipe
  • Understanding Classes
  • Why Object-Oriented Programming?
  • Database Security
  • Queries & Results
  • Getting Started with PDO
  • Updating and Deleting Records
  • Reading and Writing Reports
  • Creating Records
  • Project Setup
  • PHPDB Stage 5: Search
  • PHPDB Stage 4: Pagination with LIMITs
  • PHPDB Stage 3: Using Relational Data
  • Day 3: Getting Creative
  • Day 2: Advanced Selecting
  • Day 1: Joining Tables
  • Orientation: Selecting Data
  • Subqueries
  • Set Operations
  • Joining Table Data with SQL
  • Table Relationships
  • Database Keys
  • Database Normalization
  • Creating and Modifying Database Tables
  • PHPDB Stage 2: Querying the Database with PHP
  • Regular Expressions
  • PHPDB Stage 1: Databases and PHP
  • Handling Errors When Manipulating Data
  • Deleting Data from a Database
  • Updating Data in a Database
  • Adding Data to a Database
  • Date and Time Functions
  • Aggregate and Numeric Functions
  • Working with Text
  • Ordering, Limiting and Paging Results
  • Finding the Data You Want
  • Getting Data from a Database
  • Data, Databases and SQL
  • Parsing Specific Formats
  • Basic File Handling
  • Browser Persistent Data with PHP
  • PHP Email Form Errors
  • PHP Email Forms
  • PHP Inventory
  • PHP Includes
  • PHP Internal Functions
  • PHP Returns & Closures
  • PHP Functions Basics
  • PHP Loops
  • PHP Arrays
  • PHP Conditionals
  • PHP on the Web
  • Daily Exercise Program
  • Unit Converter
  • Getting to Know PHP
  • Using Slack Effectively
  • Introducing Slack for the Techdegree
  • Installing WordPress Locally
  • What Is WordPress?
  • JavaScript is Everywhere
  • Getting the REST You Need
  • GET and POST Requests in a Browser
  • Introduction to HTTP
  • Maintaining Secure Web Apps
  • Protecting Data and Keeping Attackers Out
  • Why Protect Your Web Apps
  • Security in Practice
  • Common Attacks and Defenses
  • Hello Internet!
  • Installing Programs
  • Environment and Redirection
  • Console Processes
  • Console Users and Permission
  • Callbacks and the DOM
  • Callbacks with Timers
  • Introduction to Callback Functions
  • Keyframe and Line Drawing Animations
  • Creating an SVG
  • Transitions and Transforms
  • Introduction to SVG
  • Adding 3D Effects with CSS
  • Getting Started with CSS Transforms
  • Transition Timing Functions and Delays
  • Getting Started with CSS Transitions
  • Quiz Practice Project
  • Prototypal Inheritance
  • Constructor Functions & Prototypes
  • Introduction to Methods
  • Improving the Application Code
  • Editing and Filtering Names
  • Adding and Removing Names
  • Choosing Options
  • Organizing Forms
  • Form Basics
  • Structuring Tables
  • Table Basics
  • Advanced Selectors
  • Going Further with Attribute Selectors and Pseudo-Classes
  • Selectors - Beyond the Basics
  • Going Further with HTML
  • Images, Text and Links
  • Structuring Your Content
  • Getting Started With HTML
  • Using a jQuery Carousel
  • Add a Sticky Navigation Bar
  • Introducing jQuery Plugins
  • Creating a Simple Drawing Application
  • Creating a Password Confirmation Form
  • Creating a Mobile Drop Down Menu
  • Creating a Simple Lightbox
  • Creating a Spoiler Revealer
  • Introduction to jQuery
  • DOM Traversal
  • DOM Manipulation
  • Events
  • Hello, jQuery!
  • Traversing the DOM
  • Responding to User Interaction
  • Making Changes to the DOM
  • Getting a Handle on the DOM
  • The Browser Environment
  • JavaScript Objects
  • JavaScript Arrays
  • JavaScript Loops
  • JavaScript Functions
  • JavaScript Conditional Statements
  • JavaScript Numbers
  • 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
  • JavaScript Variables
  • Introducing JavaScript
  • Python For Beginners
  • Introduction to Typography
  • Art Direction with the Picture Element
  • Image Delivery with Srcset and Sizes
  • Positioning Page Content
  • CSS Layout Project
  • Page Layout with the Float Property
  • Controlling Layout with CSS Display Modes
  • Getting Started with CSS Layout
  • Fundamental Concepts
  • Designing with the Latest Features
  • Basic Layout
  • The Box Model
  • Understanding Values and Units
  • Basic Selectors
  • Getting Started with CSS
  • Getting Started with Java
  • Values and Units
  • Advanced Selectors
  • Selectors
  • Getting Started with CSS
  • Debugging HTML and CSS Problems
  • Sharing a Website
  • Responsive Web Design and Testing
  • Adding Pages to a Website
  • Styling Web Pages and Navigation
  • Customizing Colors and Fonts
  • CSS: Cascading Style Sheets
  • Creating HTML Content
  • HTML First
  • Beginning HTML and CSS
  • Moving Around in the Console
  • Improving Usability
  • Mobile Usability
  • Website Usability
  • What is Usability?
  • jQuery Plugins
  • Form Validation and Manipulation
  • Introduction to jQuery
  • Web Apps
  • Websites
  • Introduction
  • Graphic Basics
  • Advanced Techniques
  • Responsive Design
  • Adaptive Design
  • Fluid Foundation
  • Launching the Website
  • Styling Content
  • Creating a Website Structure
  • Text Editors and HTML
  • Website Basics
  • Ruby Testing
  • Standard Library
  • Ruby Core
  • Ruby Modules
  • Ruby Procs & Lambdas
  • Ruby Blocks
  • Ruby Loops
  • Ruby Methods
  • Ruby Hashes
  • Ruby Arrays
  • Ruby Numbers
  • Ruby Strings
  • Objects, Classes, and Variables
  • Ruby Basics
  • Functions
  • Objects and Arrays
  • Control Structures
  • Basics
  • JavaScript Objects
  • JavaScript Functions
  • JavaScript Arrays
  • JavaScript Numbers
  • JavaScript Strings
  • Introduction Variables
  • Media Queries
  • Multi-Column Layouts
  • Animation
  • Transforms
  • Transitions
  • Backgrounds
  • Gradients
  • Borders
  • Web Fonts
  • Typography
  • Selectors
  • Color Theory
  • Principles
  • Elements
  • Website Basics
  • Forms
  • Tables
  • Objects
  • Links
  • Lists
  • Text
  • Introduction
  • Framework Foundations
  • Printing
  • Page Layout
  • Box Model
  • Text
  • Data Types
  • Selectors
  • Introduction
  • Introduction to Responsive Web Design
  • Newbie