floitsch

17 ms·

121.
by floitsch 7y ago
Author of Grisu here. It's really surprising, how long it took to find the most efficient algorithms for double-conversions. In 1980 Coonen already published a good algorithm, but that one was kind-of lost. For a long time Steele &
122.
by floitsch 8y ago
Failed programming languages are not popular, which is why it is hard to remember them. For example, Ceylon (backed by Redhat) never got any traction, and most people forgot about it or never heard about it.
123.
by floitsch 9y ago
Just wrote a post a week ago on the subject of date/time issues programmers have to be aware of: https://medium.com/@florian_32814/date-time-526a4f86badb It's almost sad that Massachusetts switching wouldn&#x
124.
Date-Time(medium.com)
3 points by floitsch 9y ago|0 comments
125.
by floitsch 9y ago
For example: - better type promotion (`if (x is! A) throw "not A"; useAsA(x);`. - Optional new/const. - Allowing named arguments at any position at the call site. These are all easier to specify and implement, and reach more
126.
by floitsch 9y ago
It's currently not planned for Dart 2.0. We intend to work on it at a later point again.
127.
by floitsch 9y ago
There are no plans to add multithreading to the platform. Currently, we are not spending resources on parallel execution (with isolates), either. There are other easier features that have more impact. Eventually, we will revisit this topic,
128.
by floitsch 9y ago
It's not going to be in Dart 2.0. However, it's still on the list of features we would like to work on. Adding it later gets harder (because we don't want to break our users), but we hope that we can find a good migration pat
129.
by floitsch 9y ago
Dart is doing fine inside Google. It is used by extremely important projects, like, for example Adwords. These teams are very happy with it and have no intention of changing. Brad Green already posted a follow-up post on the omission of Dar
130.
by floitsch 10y ago
There is also http://github.com/double-conversion (of which I'm the author). It's based on http://florian.loitsch.com/publications/dtoa-pldi2010.pdf I'm obviously biased, but I think the
131.
by floitsch 10y ago
I'm the author of Grisu. ( http://github.com/google/double-conversion and http://florian.loitsch.com/publications/dtoa-pldi2010.pdf ) Grisu is also proven to be always correct. As mentioned in
132.
by floitsch 10y ago
Author here. Grisu is accurate, but not always optimal. However, it figures out when that happens and lets you bail out to a slower algorithm when that happens. If you want full speed you should use Grisu, and then use Errol as a bailout. A
133.
by floitsch 10y ago
I'm not really working on Google3 (the shared code base) but I hope the following answers might still be helpful. Same repo: projects in Google are encouraged to use other project's code. You can only do that if the versions of th
134.
by floitsch 11y ago
Android allows JITs. On ios one has to go through precompilation or use an interpreter. The current approach for Flutter is precompilation.
135.
by floitsch 12y ago
Will do.
136.
by floitsch 12y ago
Yes. Dart2js in v1.9 supports async/await.
137.
by floitsch 12y ago
I prefer not to give any numbers (not even ballpark). It is extremely dependent on the benchmark, the JS engine, execution order (which function is optimized first, and/or inlined, ...). Things get more complex if you want to implement
138.
by floitsch 12y ago
With the exception of numbers we should be conformant (and if we aren't please file a bug). A fully compliant dart2js would be theoretically nice, but practically mostly useless (because of its speed). The Dart language and its spec ar
139.
by floitsch 12y ago
This is a personal opinion, but I was honestly surprised how nicely the standardization process is going. I was part of the team that started Dart (right place at the right time :), and helped design the language. Obviously we have some emo
140.
by floitsch 12y ago
Disclaimer: I work on dart2js. Dart2js is not conformant. You could, maybe, twist the meaning of the spec this way, but it goes against the spirit of the sentence and the spec. Tbh we never implemented a fully compliant dart2js backend. We
141.
by floitsch 12y ago
https://api.dartlang.org/apidocs/channels/stable/dartdoc-vie...
142.
by floitsch 12y ago
In JavaScript every object is basically a hashtable. In order to get acceptable performance JS engines build type descriptions ("hidden classes" or sometimes just "maps") behind your back. That is, if you create a JS obj
143.
by floitsch 13y ago
Dart2js was there from the beginning and the project was always well stuffed. It was never an afterthought and some decisions in the Dart language were taken because of the constraints we have when compiling to JavaScript.
144.
by floitsch 13y ago
Disclaimer: I'm the TLM of dart2js. The dart2js team is one of the teams with the most developers on it. There is a huge effort going into it. Dart2js generally does a good job, but a few features (like mirrors) that are still in beta-
145.
by floitsch 13y ago
It was recently added, but apparently removed again. (I don't know the exact reasons). Edit. you can see the announcement here: https://plus.google.com/109866369054280216564/posts/XbjvN5QV... Edit2. Removal o
146.
by floitsch 13y ago
I was the TL of the libraries for almost a year, and there are good reasons we didn't go this route: - it adds overhead. Being able to write JSON.encode(customer) would mean that every class needs to retain its field names. Minificatio
147.
by floitsch 13y ago
That's not really the problem. Web developers have learned from the past and don't just build web-pages for one browser only. On the contrary... Developers now sometimes need to support outdated browsers with little market share (
148.
by floitsch 13y ago
According to twitter, upgrading to FF 26 fixes it.
149.
by floitsch 13y ago
https://www.dartlang.org/docs/spec/
150.
by floitsch 13y ago
The VM works on MIPS too.

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