Óscar Hernández sandoval

Óscar Hernández sandoval

Santo Domingo, Dominican Republic
Open to Work

9,257

Total Points

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Skills & Experience

  • Spoken Languages

    • English
    • spanish

103 Achievements

  • Achievement

    Handling Errors in Node

    Node.js Basics 2017

    Achieved

    Mar 29, 2019

    Handling Errors in Node
  • Achievement

    Getting Data From an API With Node

    Node.js Basics 2017

    Achieved

    Mar 25, 2019

    Getting Data From an API With Node
  • Achievement

    Introduction to Node.js

    Node.js Basics 2017

    Achieved

    Mar 18, 2019

    Introduction to Node.js
  • Achievement

    Building Constructor Methods and Generating Objects

    Object-Oriented JavaScript: Challenge

    Achieved

    Mar 4, 2019

    Building Constructor Methods and Generating Objects
  • Achievement

    Introducing 'Four in a Row'

    Object-Oriented JavaScript: Challenge

    Achieved

    Feb 12, 2019

    Introducing 'Four in a Row'
  • Achievement

    Classes

    Introducing ES2015

    Achieved

    Feb 9, 2019

    Classes
  • Achievement

    Objects and New Collection Types

    Introducing ES2015

    Achieved

    Feb 6, 2019

    Objects and New Collection Types
  • Achievement

    The Cooler Parts of ES2015

    Introducing ES2015

    Achieved

    Feb 5, 2019

    The Cooler Parts of ES2015
  • Achievement

    ES2015 Basics

    Introducing ES2015

    Achieved

    Feb 4, 2019

    ES2015 Basics
  • Achievement

    Reformatting User Input

    Regular Expressions in JavaScript

    Achieved

    Jan 26, 2019

    Reformatting User Input
  • Achievement

    Validating a Form with Regular Expressions

    Regular Expressions in JavaScript

    Achieved

    Jan 26, 2019

    Validating a Form with Regular Expressions
  • Achievement

    Regular Expressions

    Regular Expressions in JavaScript

    Achieved

    Jan 25, 2019

    Regular Expressions
  • Achievement

    Improving the Application Code

    DOM Scripting By Example

    Achieved

    Jan 12, 2019

    Improving the Application Code
  • Achievement

    Editing and Filtering Names

    DOM Scripting By Example

    Achieved

    Jan 12, 2019

    Editing and Filtering Names
  • Achievement

    Adding and Removing Names

    DOM Scripting By Example

    Achieved

    Jan 11, 2019

    Adding and Removing Names
  • Achievement

    Create Function Using Arrow Syntax

    Getting Started With ES2015

    Achieved

    Jan 11, 2019

    Create Function Using Arrow Syntax
  • Achievement

    Defining Variables With let and const

    Getting Started With ES2015

    Achieved

    Jan 6, 2019

    Defining Variables With let and const
  • Achievement

    JavaScript Tools and Workflows

    The Landscape of JavaScript

    Achieved

    Jan 6, 2019

    JavaScript Tools and Workflows
  • Achievement

    JavaScript is Everywhere

    The Landscape of JavaScript

    Achieved

    Jan 6, 2019

    JavaScript is Everywhere
  • Achievement

    Finishing the Game

    Introducing JavaScript

    Achieved

    Jan 1, 2019

    Finishing the Game
  • Achievement

    Introducing JavaScript

    Introducing JavaScript

    Achieved

    Dec 31, 2018

    Introducing JavaScript
  • Achievement

    Using Slack Effectively

    Slack for the Techdegree

    Achieved

    Dec 31, 2018

    Using Slack Effectively
  • Achievement

    Introducing Slack for the Techdegree

    Slack for the Techdegree

    Achieved

    Dec 30, 2018

    Introducing Slack for the Techdegree
  • Achievement

    Chrome DevTools Basics

    Website Optimization

    Achieved

    Dec 28, 2018

    Chrome DevTools Basics
  • Achievement

    Testing for Accessibility

    Web Accessibility Compliance

    Achieved

    Dec 23, 2018

    Testing for Accessibility
  • Achievement

    Mobile Accessibility

    Web Accessibility Compliance

    Achieved

    Dec 23, 2018

    Mobile Accessibility
  • Achievement

    Accessible UI Patterns

    Web Accessibility Compliance

    Achieved

    Dec 22, 2018

    Accessible UI Patterns
  • Achievement

    Semantic HTML and WAI-ARIA

    Web Accessibility Compliance

    Achieved

    Dec 22, 2018

    Semantic HTML and WAI-ARIA
  • Achievement

    WCAG 2.0 (and Other Standards)

    Web Accessibility Compliance

    Achieved

    Dec 20, 2018

    WCAG 2.0 (and Other Standards)
  • Achievement

    Access for Everybody

    Web Accessibility Compliance

    Achieved

    Dec 19, 2018

    Access for Everybody
  • Achievement

    Practicing Getters and Setters

    Practice Getters and Setters in JavaScript

    Achieved

    Dec 18, 2018

    Practicing Getters and Setters
  • Achievement

    Getters and Setters

    Object-Oriented JavaScript

    Achieved

    Dec 17, 2018

    Getters and Setters
  • Achievement

    Practicing Classes

    Practice Classes in JavaScript

    Achieved

    Dec 15, 2018

    Practicing Classes
  • Achievement

    Working with Classes in JavaScript

    Object-Oriented JavaScript

    Achieved

    Dec 15, 2018

    Working with Classes in JavaScript
  • Achievement

    Practicing Object Basics

    Practice Object Basics in JavaScript

    Achieved

    Dec 13, 2018

    Practicing Object Basics
  • Achievement

    Object Basics

    Object-Oriented JavaScript

    Achieved

    Dec 13, 2018

    Object Basics
  • Achievement

    Introduction to Object-Oriented JavaScript

    Object-Oriented JavaScript

    Achieved

    Dec 13, 2018

    Introduction to Object-Oriented JavaScript
  • Achievement

    AJAX and APIs

    AJAX Basics (retiring)

    Achieved

    Dec 12, 2018

    AJAX and APIs
  • Achievement

    jQuery and AJAX

    AJAX Basics (retiring)

    Achieved

    Dec 10, 2018

    jQuery and AJAX
  • Achievement

    Programming AJAX

    AJAX Basics (retiring)

    Achieved

    Dec 7, 2018

    Programming AJAX
  • Achievement

    AJAX Concepts

    AJAX Basics (retiring)

    Achieved

    Dec 5, 2018

    AJAX Concepts
  • Achievement

    Captioning Video

    HTML Video and Audio

    Achieved

    Nov 30, 2018

    Captioning Video
  • Achievement

    Media Basics

    HTML Video and Audio

    Achieved

    Nov 30, 2018

    Media Basics
  • Achievement

    Structuring Tables

    HTML Tables

    Achieved

    Nov 29, 2018

    Structuring Tables
  • Achievement

    Table Basics

    HTML Tables

    Achieved

    Nov 29, 2018

    Table Basics
  • Achievement

    Combine and Minify Assets

    Introduction to Front End Performance Optimization

    Achieved

    Nov 28, 2018

    Combine and Minify Assets
  • Achievement

    Optimize Assets

    Introduction to Front End Performance Optimization

    Achieved

    Nov 27, 2018

    Optimize Assets
  • Achievement

    Measuring Performance

    Introduction to Front End Performance Optimization

    Achieved

    Nov 26, 2018

    Measuring Performance
  • Achievement

    Planning for Performance

    Introduction to Front End Performance Optimization

    Achieved

    Nov 26, 2018

    Planning for Performance
  • Achievement

    Building Forms With Bootstrap

    Bootstrap Basics

    Achieved

    Nov 24, 2018

    Building Forms With Bootstrap
  • Achievement

    Using Bootstrap Components

    Bootstrap Basics

    Achieved

    Nov 22, 2018

    Using Bootstrap Components
  • Achievement

    Responsive Layouts With the Bootstrap Grid

    Bootstrap Basics

    Achieved

    Nov 19, 2018

    Responsive Layouts With the Bootstrap Grid
  • Achievement

    Using Template Literals

    Getting Started With ES2015

    Achieved

    Nov 19, 2018

    Using Template Literals
  • Achievement

    Getting to Know Bootstrap 4

    Bootstrap Basics

    Achieved

    Nov 18, 2018

    Getting to Know Bootstrap 4
  • Achievement

    Working with jQuery Collections (2017)

    jQuery Basics

    Achieved

    Nov 15, 2018

    Working with jQuery Collections (2017)
  • Achievement

    Understanding jQuery Events and DOM Traversal (2017)

    jQuery Basics

    Achieved

    Nov 12, 2018

    Understanding jQuery Events and DOM Traversal (2017)
  • Achievement

    Introducing jQuery (2017)

    jQuery Basics

    Achieved

    Nov 9, 2018

    Introducing jQuery (2017)
  • Achievement

    Advanced Selectors

    CSS Selectors

    Achieved

    Nov 5, 2018

    Advanced Selectors
  • Achievement

    Going Further with Attribute Selectors and Pseudo-Classes

    CSS Selectors

    Achieved

    Nov 1, 2018

    Going Further with Attribute Selectors and Pseudo-Classes
  • Achievement

    Selectors - Beyond the Basics

    CSS Selectors

    Achieved

    Oct 26, 2018

    Selectors - Beyond the Basics
  • Achievement

    Traversing the DOM

    JavaScript and the DOM (Retiring)

    Achieved

    Oct 22, 2018

    Traversing the DOM
  • Achievement

    Responding to User Interaction

    Interacting with the DOM

    Achieved

    Oct 16, 2018

    Responding to User Interaction
  • Achievement

    Making Changes to the DOM

    JavaScript and the DOM (Retiring)

    Achieved

    Oct 11, 2018

    Making Changes to the DOM
  • Achievement

    Getting a Handle on the DOM

    JavaScript and the DOM (Retiring)

    Achieved

    Oct 8, 2018

    Getting a Handle on the DOM
  • Achievement

    The Browser Environment

    JavaScript and the DOM (Retiring)

    Achieved

    Oct 3, 2018

    The Browser Environment
  • Achievement

    JavaScript Objects

    JavaScript Loops, Arrays and Objects

    Achieved

    Oct 2, 2018

    JavaScript Objects
  • Achievement

    JavaScript Arrays

    JavaScript Loops, Arrays and Objects

    Achieved

    Sep 26, 2018

    JavaScript Arrays
  • Achievement

    JavaScript Loops

    JavaScript Loops, Arrays and Objects

    Achieved

    Sep 18, 2018

    JavaScript Loops
  • Achievement

    Choosing Options

    HTML Forms

    Achieved

    Sep 12, 2018

    Choosing Options
  • Achievement

    Organizing Forms

    HTML Forms

    Achieved

    Sep 10, 2018

    Organizing Forms
  • Achievement

    Form Basics

    HTML Forms

    Achieved

    Sep 7, 2018

    Form Basics
  • Achievement

    Building a Layout with Flexbox

    CSS Flexbox Layout

    Achieved

    Sep 6, 2018

    Building a Layout with Flexbox
  • Achievement

    Flexbox Properties

    CSS Flexbox Layout

    Achieved

    Sep 4, 2018

    Flexbox Properties
  • Achievement

    Understanding Flexbox

    CSS Flexbox Layout

    Achieved

    Aug 29, 2018

    Understanding Flexbox
  • Achievement

    Responsive Patterns

    Responsive Layouts

    Achieved

    Aug 28, 2018

    Responsive Patterns
  • Achievement

    Media Queries

    Responsive Layouts

    Achieved

    Aug 28, 2018

    Media Queries
  • Achievement

    Responsive Theory

    Responsive Layouts

    Achieved

    Aug 24, 2018

    Responsive Theory
  • Achievement

    Positioning Page Content

    CSS Layout Basics

    Achieved

    Aug 23, 2018

    Positioning Page Content
  • Achievement

    CSS Layout Project

    CSS Layout Basics

    Achieved

    Aug 21, 2018

    CSS Layout Project
  • Achievement

    Page Layout with the Float Property

    CSS Layout Basics

    Achieved

    Aug 20, 2018

    Page Layout with the Float Property
  • Achievement

    Controlling Layout with CSS Display Modes

    CSS Layout Basics

    Achieved

    Aug 16, 2018

    Controlling Layout with CSS Display Modes
  • Achievement

    Getting Started with CSS Layout

    CSS Layout Basics

    Achieved

    Aug 14, 2018

    Getting Started with CSS Layout
  • Achievement

    JavaScript Functions

    JavaScript Basics (Retired)

    Achieved

    Aug 9, 2018

    JavaScript Functions
  • Achievement

    JavaScript Conditional Statements

    JavaScript Basics (Retired)

    Achieved

    Aug 3, 2018

    JavaScript Conditional Statements
  • Achievement

    JavaScript Numbers

    JavaScript Basics (Retired)

    Achieved

    Jul 26, 2018

    JavaScript Numbers
  • Achievement

    JavaScript Variables

    JavaScript Basics (Retired)

    Achieved

    Jul 22, 2018

    JavaScript Variables
  • Achievement

    Introducing JavaScript

    JavaScript Basics (Retired)

    Achieved

    Jul 6, 2018

    Introducing JavaScript
  • Achievement

    Fundamental Concepts

    CSS Basics (2014)

    Achieved

    Jun 27, 2018

    Fundamental Concepts
  • Achievement

    Designing with the Latest Features

    CSS Basics (2014)

    Achieved

    Jun 25, 2018

    Designing with the Latest Features
  • Achievement

    Basic Layout

    CSS Basics (2014)

    Achieved

    Jun 14, 2018

    Basic Layout
  • Achievement

    The Box Model

    CSS Basics (2014)

    Achieved

    Jun 12, 2018

    The Box Model
  • Achievement

    Understanding Values and Units

    CSS Basics (2014)

    Achieved

    Jun 11, 2018

    Understanding Values and Units
  • Achievement

    Basic Selectors

    CSS Basics (2014)

    Achieved

    Jun 7, 2018

    Basic Selectors
  • Achievement

    Getting Started with CSS

    CSS Basics (2014)

    Achieved

    Jun 5, 2018

    Getting Started with CSS
  • Achievement

    Going Further with HTML

    HTML Basics

    Achieved

    Jun 4, 2018

    Going Further with HTML
  • Achievement

    Images, Text and Links

    HTML Basics

    Achieved

    Jun 1, 2018

    Images, Text and Links
  • Achievement

    Structuring Your Content

    HTML Basics

    Achieved

    May 31, 2018

    Structuring Your Content
  • Achievement

    Getting Started With HTML

    HTML Basics

    Achieved

    May 31, 2018

    Getting Started With HTML
  • Achievement

    Adding a New Web Page

    Introduction to HTML and CSS (2016)

    Achieved

    May 30, 2018

    Adding a New Web Page
  • Achievement

    Make It Beautiful with CSS

    Introduction to HTML and CSS (2016)

    Achieved

    May 29, 2018

    Make It Beautiful with CSS
  • Achievement

    HTML: The Structural Foundation of Web Pages and Applications

    Introduction to HTML and CSS (2016)

    Achieved

    May 28, 2018

    HTML: The Structural Foundation of Web Pages and Applications
  • Achievement

    Getting Familiar with HTML and CSS

    Introduction to HTML and CSS (2016)

    Achieved

    May 28, 2018

    Getting Familiar with HTML and CSS
  • Achievement

    Newbie

    Achieved

    May 26, 2018

    Newbie