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Talks & Live coding

During the past 8 years, I gave various talks at conferences, meetups and private events, most of them focused on JavaScript, UI Development, Web and Mobile.

Below you'll find a non-comprehensive list of topics I've spoken about.
  • March 2021
    Slides only

    Scalable CSS

    CSS is easy to learn, but difficult to master, even at small scale. Developing and maintaining a large CSS code base requires a lot of effort, strict rules and proper tooling.


    We'll analyze various solutions we have at our disposal to address the scalability limitations of CSS, looking at methodologies, CSS-in-JS and type systems.

  • February 2021
    Slides only

    A thorough analysis of CSS-in-JS

    There are more than 50 different CSS-in-JS libraries out there and each of them provides a unique set of features.


    Instead of reviewing each individual library, we’ll analyse the various features that these libraries have to offer, to better understand what approach better suits a specific use-case.

  • September 2020
    Slides and Live code

    i18n & l10n

    This talk explains the difference between Internationalisation and Localisation and how to implement translations and pluralisations using i18next.


    We'll also take a look at the ECMAScript Intl standard and how to use its APIs to apply localised formatting to numbers, currencies, dates and times.

  • July 2020
    Slides only

    Simple vs. Easy

    Simple solutions usually require a lot of effort during their usage, but they also provide a high level of control. Complex solutions are usually easy to use, but retain the control for themselves. This theory applies both at high-level architecture and also at low-level, day-to-day code design.


    We'll explore different methods for tackling software complexity, by deeply understanding our users and deciding where to place the control: in the implementation, or in the consumer.

  • August 2020
    Live code

    CSS layout tricks

    This presentation walks through 3 different layout examples using CSS grids. We'll start by focusing on markup semantics, then sprinkle some lesser known CSS properties to implement solid and flexible layouts.

  • April 2020
    Slides and Live demo

    Game of Life and Performance

    This is a 2-part talk. The first part is an introduction to John Conway's Game of Life and some of it's practical applications today. The second part walks through an implementation of Game of Life in React.


    We'll measure rendering performance and code execution performance, identify bottlenecks and optimize our solution to run at 60fps.

  • January 2020
    Live code

    Memoization in React

    React is fast enough, until it becomes slow. In this talk we'll examine the limitations of React's rendering performance.


    We'll take a look at different situations when rendering bottlenecks can occur, measure rendering performance using React Profiler and optimize it using React.memo(), useMemo() and useCallback().

  • November 2019
    Slides only

    The False Dichotomy of UI Development

    We usually talk about 2 different types of Front-End/UI developers: the designer type focused on HTML & CSS, and the engineer type focused on JS and frameworks. This dychotomy matches perfectly the difference between client facing websites and back office applications.


    But, when dealing with wep apps that are also client facing, we witness a blend of design and engineering skills that are required to build such UIs.

  • February 2019
    Slides and Live demo

    Isolated Components Driven Development

    This talks describes the challenges of developing UIs that need to communicate with external APIs. Using tools such as React Styleguidist or Storybook can help us to eliminate the need for an integration, enabling us to develop components in isolation, outside the application.

  • October 2018
    Live code

    Bridging Swift and React Native

    This is a live coding session based on my Ultimate Guide for Swift in React Native. We'll create a native module in Swift and implement a React Native bridge, allowing us to exchange data back and forth between JavaScript code and native iOS code written in Swift.

Old and discontinued talks

  • July 2018

    Devtools breakpointing

    Lightning talk, Live code

    Code breakpoints is something we're all used to. But Chrome Devtools provide additional debugging methods that allow us to break on DOM manipulations, XHR requests, and various DOM events.

  • June 2018

    Mobx and friends

    Slides and Live demo

    This is an introduction to MobX, a complex state management solution. It takes the more popular and simpler Redux library as comparison, to highlight the key differences in concepts, syntax, features and performance.

  • November 2017

    How full is your stack?

    Slides only

    Developers want to become "full-stack". Companies hire full-stack developers. Some say that full-stack means "jack of all trades, master of none". The answer must be somewhere in the middle. We'll analyze the history of the term and debate what it really means from the developement and management point of view.

  • October 2017

    JavaScript is different

    Slides only

    Breaking changes are a great way to improve software, by changing poor design and removing the bad parts. It's what all languages do at some point. However, JavaScript cannot afford to do that. We'll explore why is JavaScript different in this regard and what options does it have for improvement.