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As is always the case with projectors, we had trouble getting it working, so demonstrations ended up being shown directly on people's laptops instead.
Day 149 - Javascript for dummies
Because Oliver is still sick, today he has tinkered again on a new design for his website. So first I had to read a smart book until I could assist him. We have not become quite finished, but it looks already well! :)
Da Oliver immernoch krank ist, hat er auch heute wieder an einem neuen Design für seine Webseite gebastelt. Ich musste mir deshalb erst ein schlaues Buch durchlesen, bevor ich ihm dabei helfen konnte. Wir sind noch nicht ganz fertig geworden, aber es sieht schon gut aus! :)
Please check: 365.olivertotzke.de for the complete project and leave a comment there!
The JQuery team failed to engage properly with their community - I've blogged about this here: philwhitehouse.blogspot.com/2008/09/listening-to-your-com...
This image was taken from wayback machine (around February 2008): web.archive.org/web/20080209164751/http://jquery.com/
During Whiskerino, participants are not allowed to manipulate their images in photoshop. However on one day out of the entire 4 months everyone is allowed to do whatever they want with digital manipulation of photos. I decided to add in a little javascript and break out of the normal photo box that we're confined to.
You can see the actual page of this screen shot here.
IAMYOURFAVORITE is my daily creative exercise for 2010. You can follow along at http://iamyourfavorite.com/
box.color = "blue"
this is a very rough demo of the garden javascript graphical environment on an iphone
Was visiting Louis Gray's page this afternoon and noticed he's got a _lot_ of JavaScript includes - zomg!
SILVA, Maurício Samy. JavaScript: guia do programador. São Paulo: Novatec, 2010.
Quantidade de exemplares: 10
Retrieved by the Wayback Machine on 12 April 1997, this went up on February 21st. (The site itself dates back to 1995, before the Wayback Machine existed.)
High-tech users of Netscape 3 would see fancy rollover buttons via onmouseover. Sadly, the buttons are broken on archive.org.
I have no memory of actually writing any of this, mind you; I am guessing I copied and pasted the bulk of it.
Impressions from Skills Matter's FullStack Conference 2014.
MISSED THE CONFERENCE?
All talks have been recorded as SkillsCasts (film/code/slides) and are available to watch by Skills Matter's Community here: skillsmatter.com/conferences/6361-fullstack-node-and-java...
Joining the Skills Matter community is free, and it only takes a few minutes to sign up.
FULLSTACK 2015 - LONDON, JUNE 25-26TH
We are proud to announce FullStack 2015 – the conference on Node, JavaScript and hackable electronics. This year, we will bring the world's top innovators, hackers and experts together with our amazing developer community in London to learn and share skills, gain insights and drive innovation. Join to experience three days jam-packed with talks, demos, and coding.
Join us at FullStack 2015 in London on June 25-26th!
The FullStack 2015 will kick off with two days of talks and discussions over 4 tracks each day covering JavaScript, Node, hackable electronics and other topics you may tell us you wish to see.
Each track will feature talks by some of the world's top hackers and makers who are helping evolve technologies and practices in the exciting world of web, mobile, servers, drones and robots. In addition, each track will feature a Park Bench Panel discussion and 5 lightning talks by some of the great engineering teams in our community who use FullStack technologies and practices daily and will demo their projects.
Following two days of talks, we'll continue with a Saturday featuring hands-on Tutorials, so that you can gain some hands-on experience and practical skills to implement new ideas from the talks you attended and the people you met during the first 2 days!
Like the sound of that? Find out more here: skillsmatter.com/conferences/6612-fullstack-the-conferenc...
CALL FOR THOUGHTS NOW OPEN - SHARE YOUR IDEAS!
Skills Matter's community conferences are made possible thanks to our passionate community - who constantly feed us with their ideas. Who are the experts you would like to learn and share skills with next year? What topics would you like to see covered? How can we improve on 2014's conference? Help us create a great 3 days by submitting your thoughts, ideas, dreams and requirements through our Call For Thoughts Program (www.surveymonkey.com/s/VFGCDQ9) - and we'll start working on these straight away!
This photo was captured at the 2018 edition of Great Indian Developer Summit (#gids18), April 24-28, Bangalore, India.
ZoomCharts at DevClub.lv: Developing a Javascript SDK
On January 15, 2015, ZoomCharts Co-Founder and CTO Viesturs Zariņš presented at DevClub.lv - a community of Latvian IT specialists that gather monthly and host free talks, presentations, and events to allow the local IT community to share knowledge, network, and communicate. Zariņš discussed the unique challenges faced in developing JavaScript SDK.
Here is a brief overview of his PowerPoint presentation on ZoomCharts, the world’s most interactive data visualization software that will support all your data presentation needs with incredible speed.
What is ZoomCharts?
What defines ZoomCharts advanced data visualization software? It is NOT another HTML5 charts library. It is:
- Interactive
- Fast
- Touch enabled
- Supports big data
A long time ago
DOS 6.2 allowed for:
- 320x240x8bpp
- Direct access to pixels on screen
- Assembler for performance
Today, the Web has finally caught up in the graphics department. Now, we have access to:
- Multiple browsers and rendering technologies
- Multiple resolutions
- Performance that varies by browser and device
Development setup:
- We write in JavaScript
- Commit to GitHub
- Build system in JavaScript
- Debug in Chrome
- Run automated tests
- Like WebStorm (and Vim)
Graphics:
Canvas (fast)
SVG (slow)
WebGL (>50%)
Interactive animations:
Zoom in and out of the graph, drag and drop data, all with your mouse or trackpad.
Graceful degradation:
High FPS (frames per second) lets you scale graphics with low image degradation.
Third party libraries:
- Raphael
- Hammer.js
- Leaflet
- Moment.js
Challenges:
- Responsive design: layouts can shift and look nice on desktop screens vs. not so nice on vertical, mobile screens
- Big screen resolutions: uses devicePixelRatio for sharp rendering, but no hardware acceleration beyond 2048x2048
- Safari compatibility: with 100% CPU, input events are blocked and browser locks up; strange code offers fixes
- HTML on canvas: DOM is slow; basic HTML markup must be parsed and rendered manually; text caching helps
Support:
- Process: TrialSupportBuy
- 1 day issue resolution
- #1 Tell me what I did wrong
- #2 Can you do…
Testing:
- Automated tests on every GIT push
Automatically:
- Compare images
- Record performance
- View errors in console
Interactive testing:
- Next step: record and playback
BrowserStack:
- Interactive mode
- Automated: Selenium API
Debugging:
Chrome Developer tools (F12)
- Debugging
- Profiling
- Timeline
Remote debugging available: developer.chrome.com/devtools/docs/remote-debugging
Future:
- More charts
- Extension API
- Memory allocation tracking
- WebGL
We are looking for statically-typed language:
- Error checking
- Performance
- Superior minification
- Easy to write and read
- Easy to call from JS
Building
Custom build script:
- Compile
- Minify
- Extract documentation
- Embed customer data
Check out ZoomCharts products:
Network Chart
Big network exploration
Explore linked data sets. Highlight relevant data with dynamic filters and visual styles. Incremental data loading. Exploration with focus nodes.
Time Chart
Time navigation and exploration tool
Browse activity logs, select time ranges. Multiple data series and value axes. Switch between time units.
Pie Chart
Amazingly intuitive hierarchical data exploration
Get quick overview of your data and drill down when necessary. All in a single easy to use chart.
Facet Chart
Scrollable bar chart with drill-down
Compare values side by side and provide easy access to the long tail.
ZoomCharts
The world’s most interactive data visualization software
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