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chrisa

1,115 karma · joined March 13, 2009

Teaching what I know about software here: chrisachard.com
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chrisa··on Basecamp 3 for iOS: Hybrid Architecture
React Native actually does use native controls - when you say you want a ScrollView for example, you're getting a real native scroll view. That is one thing that makes it different from many other cross platform libraries.

It is true that not everything is wrapped, but if you run across something you need, it's not that bad to create the wrapping yourself; here's more details: https://facebook.github.io/react-native/docs/native-componen...

chrisa··on Software development and screen readers at 450 words per minute
There's a chrome plugin called video speed controller that can speed up any html5 video (including YouTube, vimeo, etc) to whatever speed you want. It's great!
chrisa··on Ask HN: How to transfer a project IP from a C-Corp to a person?
The devil (of course), is in the details - I would definitely check with a lawyer. If money is an issue, then call around - many lawyers will do a free consultation, where they could probably tell you if your situation required a lawyer to draft a document, or just something signed by the board.
chrisa··on Ask HN: Resources for learning advanced JavaScript and React
I have a free advanced (and beginner) daily email course to help you learn React: https://nanohop.com/react-daily-emails/

The idea is to get a small dose of React every day.

I'm also always looking for what else to include in the course - so I'd love to hear what you find most difficult, or what you think is lacking from current learning resources.

chrisa··on Startup School 2017 Presentations
We didn't do a video because we felt we were too early (we probably should have done one anyway). We're making a platform for "bite-sized learning", starting with daily email courses.

We don't have the platform ready yet, but if you want to learn React.js, check out our first course: (it's free!) https://nanohop.com/react-daily-emails/

chrisa··on Ask HN: What is your most impressive hackathon project?
We won first place at an IoT hackathon with a "Smart Locker" project. You could unlock the locker (via bluetooth) with your phone to check out a piece of equipment, and the app would show you who had which piece of equipment checked out.

I wrote up how I built the React Native app part in under 24 hours: https://nanohop.com/2017/04/25/how-we-built-a-react-native-a...

It was really neat seeing the hardware and software come together in only a day!

chrisa··on Ask HN: How do you lose weight?
If you drink soda or other sugary drinks, stop that first (or switch to diet).

Then, the only thing that has really worked for me: pick either lunch or dinner, and take 1/2 of the meal (before you start eating), and box it up for tomorrow. Don't get seconds.

I was eating out for lunch a lot, and when I started eating just 1/2 of the meal, I started to lose weight (surprise surprise).

It's not fun or easy to stop eating at 1/2 a meal, but it's a simple rule to remember. After you're used to eating less, you can start worrying about eating healthy foods, etc., but to start with that was too overwhelming. The simpler the rules you set for yourself - the easier it will be to stick to it.

chrisa··on Show HN: React Daily Emails – learn React with bite sized daily messages
Thanks! I think we're on to something with the bite sized learning - so I'm excited to see where it goes.
chrisa··on Launch HN: Lively (YC W17) – 401(k) for Healthcare
Can a single member LLC sign up as an employer? Or are there minimum employee restrictions?
chrisa··on Ask HN: What is 1 thing that can take a Junior's career to the next level?
Find someone more senior; ask questions; listen.
chrisa··on Ask HN: How much do React Native developers cost?
I'm a React and React Native consultant in Indianapolis. $100k for mid-level is about right, but the cities you listed (New York, Boston, San Diego) push that number to $125k+. I have some availability if you're interested in a contractor, and if you don't want a contractor I'd be happy to help with any advice I can (email is in my profile).
chrisa··on WalmartLabs open sources the application platform that powers Walmart.com
If you're interested, I am in the process of writing a react ebook, and I'm trying to focus on being very simple and explaining every step along the way. In fact, the whole first half of the book doesn't use a server at all (it uses script tags like https://facebook.github.io/react/docs/tutorial.html).

If you (or anyone else) is interested, I'd be happy to give you the chapters as I finish them, and would love to hear any feedback you have about it. Just send me an email (in my profile).

chrisa··on Startup School Livestream
It usually takes a couple of weeks
chrisa··on NYC Pension Earns $40M Over 10 Years, Pays Fund Managers $2B
The question which isn’t answered in the article is: how would the fund have done if passively invested in the market? If the market lost money over the same time period, then although extremely high, the fees are a relatively "good deal" (since the fund was up $40M, and the alternative would be losing money). If they’re talking about the last 10 years however, it looks like the market should have returned about 70%, which makes the fund manager's performance look even worse.
chrisa··on What was your best passive income in 2014?
$500/month from "Play Piano HD" iPad app: http://mobilesort.com/play_piano.html I built it two years ago, and have only had to do minor bug fixes to keep it up to date. It stays on the top iPad music charts in at least a couple of countries, so it does ok without any marketing.
chrisa··on Ask HN: What is the most accurate 3D indoor positioning method in small spaces?
Other than computer vision, the most accurate positioning method is "ultra wideband" (UWB). It's possible to get close to cm accuracy, but it can be expensive. There is also a calibration problem: if the readers get bumped or moved, then you may have to recalibrate the system. UWB uses time distance of arrival instead of RF triangulation, so it's extremely accurate, and you can get to 100 Hz.

You can check out a few examples: http://pluslocation.com http://www.timedomain.com/ or google for: ultra wideband real time location

If you have specific questions I'd be happy to help - contact info is in my profile.

chrisa··on We published a book in “Pay as you want” model. Here are the results.
If a website using https (HN) points to a website not using https (the blog), then the referer is hidden. So it's not something HN is doing specifically, it's just because one is https and the other is not.

More info here: http://en.wikipedia.org/wiki/HTTP_referer

chrisa··on How Google Plans To Work With Telcos On Project Loon
Here are the FAA rules about balloons and kites: http://www.ecfr.gov/cgi-bin/retrieveECFR?gp=&SID=2ede283f148...

So if the balloon or kite is a certain size, there are actually lighting and notification requirements.

chrisa··on CodeCombat (YC W14) Wants You To Learn To Code By Playing Games
Yep: https://www.youtube.com/watch?v=syoqjYLDs48
chrisa··on Model aircraft operators free to operate commercially in US, rules federal judge
http://3drobotics.com has a number of options with open source autopilots
chrisa··on Model aircraft operators free to operate commercially in US, rules federal judge
After reading the pdf, I'm still not clear: does this mean UAVs can operate in regular airspace (above 400 ft) with proper licensing, or are they still (for now) limited to under 400 ft, and away from populated areas?
chrisa··on The rise of Dogecoin, the internet's hottest cryptocurrency
You can trade BTC for DOGE at cryptsy.com, vircurex.com and bter.com
chrisa··on How much money are you earning from your software products?
$400/month from "Play Piano HD" iPad app: http://mobilesort.com/play_piano.html I've tried a few other apps, but they haven't done very well - this one is consistently in the top 100 iPad music category. I think having a very clear message and value proposition is important, especially for small apps (impulse buys).
chrisa··on How traffic actually works
This doesn't sound like the same study, but it's similar: a TED talk about how adding a fee for bridges in Stockholm reduced the number of cars by 20% and effectively eliminated congestion: http://www.ted.com/talks/jonas_eliasson_how_to_solve_traffic...
chrisa··on Show HN: Just 6 days to go – save your business from obamacare penalties now
Could you provide more information about the fine you mention? On the FAQ (http://www.dol.gov/ebsa/faqs/faq-noticeofcoverageoptions.htm...) it says there is no fine or penalty for failing to provide a notice.
chrisa··on Attention, Shoppers: Store Is Tracking Your Cell
(I've evaluated several wifi tracking systems) - your device doesn't have to connect to the network to be tracked; wifi just has to be on. While searching for nearby networks, devices constantly chirp their MAC address.
chrisa··on Micro-Projects for Fun and Profit
I've always assumed "weekend project" was a project actually done in one weekend, and a project worked on in free time would be a "side project"
chrisa··on How to know when someone is in trouble in the water
Try to rescue from afar first - throw a life ring, or anything they can grab on to.

If you must do an in person rescue, always approach from the back. If you come from the front, they'll use you as a "ladder" and climb on you, making it impossible for you to swim.

chrisa··on Four Steps to Google, Without a Degree
You mention Ruby on your "become fluent" list, but I get the impression that Google doesn't use much ruby. Is the feeling there that skills in ruby can transfer, or is it more important to focus on Java, C++ or Python?
chrisa··on How to Have a Successful Side Project
I used to have a lot of trouble switching between side projects and not really getting anything done - so I thought I would share what I do now to improve that. As always, I'm happy to answer any questions!
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