skysight-inc/HackerNews huggingface dataset:
It's the method of saving and exiting a text file in Vim. ':' enters command input mode, 'w' writes to disk and 'q' quits the program. These people mistakenly typed and saved it in non-vim-edited text files.
Happens to me all the time if I'm in an IDE for some reason.
I appreciate that you reposted the deleted comment to quell my curiosity and that you were considerate enough to not include the original authors username.

One of the big reasons I was curious about the content of the comment is that I have been thinking about comment karma and the utility of deleting comments lately. Comments like this make a strong case against being able to delete comments. In order for karma to be most effective it seems that it must not only quantify a user's positive contributions but also the user's negative contributions. If a user knows they can make potentially dumb/offensive comments and delete them before taking a karma hit they do not need to filter their thoughts before hitting submit. In my opinion clicking submit is an implicit statement that I stand by my comment and that it was submitted in good faith and is a sincere expression of my opinion.

I am not entirely sure what the purpose of delete is. If someone asks "what is the X of y?" and my response is factually incorrect the comment/answer will be downvoted. People that see my downvoted answer will know that it has been judged "unacceptable" by the HN community; so I do not think there is a reason to worry about spreading false information. If the question is not about a factual matter and my opinion is judged unacceptable by the HN community so be it. I made my comment with the best of intentions and should stand by what I said in the comment.
In vi it's save (write) then quit vi. But if you're in the wrong mode it just thinks you're typing in the file.
why not :x ?
Lately, I keep accidentally creating files that are named ":w" and I don't even know how I do it.
Maybe that was true in some distant past, but in my time in the startup world (about 16 years) it's never really been true. It's actually the thing I think Mike Judge has really nailed in "Silicone Valley" on HBO. He tells the story from the perspective of a bunch of nerds being thrust into the broader culture of the Valley. The culture of "drink ups" and beer on tap in the office.

The reality of the Valley has much more in common with my fraternity house in college than anything else really. That's not to say that the hardworking hacker doesn't exist. They absolutely do! They are the ones everyone else in the Valley is taking advantage of.
Supposedly a listing of accidental commits of the text ":wq" and variants where the coder really meant to save the file in vim and quit.
I used to only get those once a week but now it has come to about once every two days. Good thing I don't actively monitor my "all mail". Lately, I use the search feature in my gmail quite often. People will hunt me down (in person or by phone etc) and ask me about the email they sent me. Then, I go into my gmail and find the email in question.
Did you use http://getsupport.apple.com to book your appointment? You can choose Take-in to book the appointment. You can also schedule a call back.
A bit late to the party, but here's what I wrote in my JavaScript book:

Asides: Number Encoding
This may be a bit of a strange concept to discuss in a book about JavaScript,
but the numbers that we’re all familiar with is only one of many different
kinds of encoding that exsits in the world.

The numerical system that we encode our numbers with today came from ancient
India, and was popularized by the Persians, hence the name Arabic-Hindu numbers.
It is a positional system. For example, the number 15 represents 1 unit in
the tens position, and 5 in the singular position - essentially 1 × 10 + 5 × 1.
Likewise, 314 is 3 × 100 + 1 × 10 + 4 × 1. This is read as 3 units in hundreds
position, 1 unit in the tens position, and 4 units in the singular position
There also exists numerical systems which are non-positoinal. Perhaps
the most famous example are Roman numerals. It’s also positional-ish, since
the position of the numerals are somewhat important for specific cases -
VI and IV mean very different things. The Mayan numeral system is another
example of a non-positional system, intermixed with a unary-ish system.

Most positional numerical systems have somewhat evolved into the same state,
despite having different runes and conventions to represent the same thing.
But perhaps the greatest innovation to numerical systems is the representation
of fractional numbers in a positional numerical system. It allowed us
to do really much fancier mathematics. However, as can be seen in the example
with 1/3 above, representing a fraction in a positional numerical system is
somewhat difficult.

The reason why this section is even here is to function as a reminder to the
reader that binary numerical systems used by modern computers are also
just another system - imagine it to be from another civilization, if you will
- and not be intimidated by it.

 Speaking of fractions, the ancient Egyptians were one of the first civilizations
to use a fraction system (the Chinese were the other). Especially by modern day
standards, it was a very interesting fraction system. The fractions used by ancient
Egyptians are expressed only in terms of unit fractions
- i.e. fractions with 1 as the numerator.

There was quite a lot of junk cut out from my book too about ancient chinese numerical systems - they had different numerical systems for different classes of people, and different numerical systems for different bases. And even had negative numbers!

Your question is actually a question of positional and nonpositional notation. I'm quite sure we'll stick with positional notations for some time to come, but uh, you never know about the future. For all we know, there could be a superior nonpositional system out there.
Just to hold off on the Quora bashing for a few seconds - I've used Quora since 2011, and they actually have not ever added a new email item defaulting to on (for me at least, maybe I'm in some grandfathered category.)

They've done heaps of annoying shit, but that in particular is one of the few things they haven't done.
I find :wq in my code commits more often than i like. It's most always when using IDEAVim, and I imagine it would be the same case for any other partial vim-emulator. For some reason, I'm just more prone to not hitting the escape sequence correctly in those editors.
It is ad hominem. The ad hominem part is the part which infers the parent poster makes whole teams grind to a halt and also earns less than himself.
I think if the idea is to help newcomers with Vim, this is the wrong approach. Nobody tries to learn something new by checking out what a random key does, using :help X. When I was trying to learn Vim, the most useful info was actually search results for "how to do X with Vim", because everybody knows A) another editor, probably B) what they want to achieve. After that you slowly discover features one after the other, which can only happen by using the editor a lot. It's good to have a "help X" around, but most of the time, if you're starting out, you don't know that X is what you need in the first place.

People learning git don't start with typing "git rebase --help" just to see what it does. You learn to add, commit, push, (probably from a tutorial) and then go from there.
Isn't there a weakness in that busy parking lots tend to be full during the day and empty at night when there's no sun?
>I do not understand why the Guardien would ever give up the information voluntarily.

Because they spent 15 seconds backing up the Snowden files on an anonymous Google Drive account and knew that GCHQ's attempts to destroy the files were futile? Or because they knew that Glenn Greenwald -- writing for them at the time -- was living in another hemisphere, had a full set of the files, and wasn't about to comply? Or because they didn't want to go to prison?

Pick your answer. Each is possible. Note I'm not faulting the Guardian here, just saying what some possibilities are.
Anyone know if Stanford has any of their endowment in Bitcoin?
If we're going to do anything with solar panels and parking lots, I'd much rather see something like Google's "solar trees". Paving parking lots with these tiles would mean that on the order of half of their effective area would be shaded beneath cars during the, you know, bright part of the day.
You may find UCLA professor Mark Kleiman's thoughts on the future of legalization interesting. Basically he predicts a big shift towards vaporization, e-cig style.

http://www.vox.com/2014/4/16/5620322/how-legalized-pot-would...
> Perhaps more convenient ways of ingesting/inhaling that don't result in such a strong odor?

Brownies.
The creators were answering questions on Reddit here:

http://www.reddit.com/r/IAmA/comments/1042mm/solar_roadways_...

The summary seems to be "we've got this awesome idea, and lots of money, now we're going to try to see if it will work."

The engineering consensus seems to be that it won't, or at best, will have extremely limited applications. Everybody would be far better off putting high-efficiency solar panels on rooftops than low-efficiency ones on the ground where they'll get dirty and broken.

Reading their literature, there seems to be a great big gap where any kind of decent engineering analysis would be.

While I can see the appeal of the idea, unicorns and hyperspace drives would also be pretty cool. I have my doubts.
The traditional enterprise IT ship is about to slip beneath the waves and Cisco wants everyone to know they have a sizable piece of wreckage to cling to.

Not a bad strategy.

I find it funny that Cisco loves to paint itself as prescient when they're actually pretty erratic and consistently late. They're just huge, yet nimble enough to consistently make the podium in some sense.

Cisco bought Tandberg as the world was moving on with Skype, Hangouts and Facetime. Cisco brought forth converged infrastructure as the world was shifting out of the datacenter. Cisco started making sizable investments in private/hybrid cloud in the last year when it would have meant a lot more in 2010. You've probably never heard of Cius, Quad or SDN (in relation to Cisco) but they were keynotes 4, 3 and 2 years ago respectively.

>'And if you look at three years ago, Huawei, Avaya, and Juniper were the worries, and they were going to eat our lunch.'

Cisco didn't fend off Huawei so much as the government blocked them from competing on the premise that China would do exactly what it turned out the NSA was already doing.
Parsing CSV is easier than handling XML or JSON. I do integrations as my job and most common format used is CSV because it's handy simple and reliable compared to other formats.
That is exactly the reason why ini and props file are also preferred over database for data which isn't too volatile or big. Any one can open the datafile and see what's stored and what's wrong.
Downvoter, please comment on what you think I did wrong here? You clearly have been here long enough to get downvoting privileges but I guess you failed to learn proper etiquette? Maybe they ought to consider raising the bar to something like 1000 points instead of 500?
Autobiography and manifesto of the Santa Barbara shooter
Snake oil. Seriously. Melt snow in northern climes? Think about it. IF there were enough sunlight to melt snow, why didn't the sunlight just, you know, melt the snow? Are they THAT much more efficient at absorbing the sun's energy? I don't think so.

Cost to buy, cost to install, cost to maintain, ... the economics just don't make sense.
Intriguing Properties of Neural Nets [pdf]
Extreme Street View: Google Employee Maps Deserted Island
Firstly, I agree, Yahoo is an awful company (like most). I also feel bad for your situation since of course your parents wouldn't know they need to use 1Pass or that business accounts should always be on their own hosted domain.

That being said, other than Yahoo taking a long time and being potentially rude, they did the right thing. If you don't have the password and can't answer the security questions and or don't have access to the recovery email address then yes you will lose full access. Otherwise, what would stop someone else from comprising someones account? Photo ids and other documents can be faked and or stolen. My 1Password holds all my passwords but if someone was able to do what you desire they could potentially gain access to my email account and then do password resets on my bank accounts and all other accounts and take over everything even without my 1Password accounts. (well I use 2 factor for most but you get the idea).

Now if Yahoo did give you access without providing a password or answer to security questions then yes that is a big security issue.

Once again, still sucks for your parents though. And if really important I imagine you can just jailbreak the iPad and their are ways to see save passwords assuming they saved it on their ipad in mail app or another app possibly. Or if they have a Mac it would be in Keychain.app.
Actually where it might make limited sense is in the parking lot roadways, not where the cars are actually parked.
In Michigan there are a number of places I know of where they have used heated sidewalks. They use a ridiculous amount of electricity and rarely help much if there's more than an inch of snow. There use is limited to government and universities where they don't look at the economics often enough of what they're doing.
Especially when the snow covers the solar panels, blocking out the sun.
Probably by typing `:w:w`.
:w:w would accomplish that.
The engineering consensus or the naysayers consensus? It's all too easy to tear apart ideas on the Internet, which is a shame.
It sounds like the Robert Scoble mentioned in the article is the Robert Scoble of scobleizer.com.
Honestly, the first thing to do is just to put up solar panel roofing over every exposed air parking lot. Everyone already wants the shade anyways.

It's honestly so weird that we're attracted to all of these 'crazy' schemes, while skipping out on the all sorts of far lower hanging, and sensible fruit.

From an energy generation point of view, this plan is pretty irresponsible. Solar installations have a relatively poor EROI as it is (for standard installations) for mid-latitude regions. Purposefully handicapping your solar infrastructure by putting on the road surface is particularly braindead in that respect. From a systemic view, it makes more sense to rip out the solar panels from the road way, and put it ontop of buildings, or really any where you won't get random occlusions, and ridiculous amounts of dirt.

I mean, I get the attraction of easily reconfigurable displays on your road surface, but honestly, the intelligence and power generation aspects of the idea should just be decoupled, and split out.
wow, that's cool!
Their snow-clearing literature says that they'll pump energy into the grid when possible, and suck it out for snow melting. Clearly a net-loss for snowmelt operations.

All the other obvious problems aside, it might be an interesting analysis to see if there would be sufficient yearly yield to offset snowmelting operations in winter. Snowfall is not constant, so "melt" operations might only need to run for a handful of days per year, depending on the location.
They've got an expensive trough through which to run power, cable and fiber that I wager all by itself costs more than paving a traditional road.

Also ask yourself the question: If there was demand for putting more utility wires underground wouldn't they already be simply burying them which is much less expensive?
I think the Strava Streams API call[1] can include the altitude data. Haven't tried the v3 API though so I'm sit sure, but the documentation indicates it is there.

[1] http://strava.github.io/api/v3/streams/
Can you explain about Mongodb support? Does it use mongoose behind? What about if I have my own mongoose model, can I still continue with same?

I did look at loopback a while ago, it was appeared like a parse.com kind of API you host on your own infrastructures. I will reread the documentation again to see if any more clarity on mongodb side.
This is one of the many reasons that I think it's important to develop a healthy distrust of insert mode. Staying in normal mode as much as possible also encourages good use of navigation commands.
Well I think, and I'm no thermal expert, that the 'plan' is to use energy from other parts of a grid system, where that energy is not needed. IE, use energy collected from a place with no snow, to melt the snow somewhere else.

Although, I will say it does not sound feasible, but I would love to hear an expert has to say.
" Any culture or individual that
condones such behavior shouldn't exist anymore."

You and a terrorist would have so much to talk about.
Questions and Answers Regarding Jerky Pet Treats
Not to start with no. But as I started to become familiar with Vim enough, I realized I reached for :h more than go search google, and for the most part, I found what I was looking for in Vim's help pretty easily and much faster than google. Vim's help is easy enough to use that you can `:helpgrep topic` or just `:help top<tab>` to list all the help topics and go from there.

Sure you can achieve the same thing by searching online. However, I believe that reading Vim's help motivates you to learn more commands and be more efficient with it. There's so many things in `:h motion.txt` that online articles don't mention and I would probably never come across them.

Similarly, with Git, I did learn to add, commit push but then I learned to reach for `git help topicname` if I want some documentation on that topic name.
Hence vimtutor. The "going from there", in git, does consist in part of "git rebase --help" or "man git-rebase", which are roughly equivalent to :help.
Good job on the permalink for the Wikipedia article. I wish more people did things like that. (e.g. links to blobs in GitHub are typically identified by the branch name rather than the commit—use the commit number by pressing the y key.)
IOS 7.1.1 Untethered Jailbreak By I0n1c, Cyberelevat0r
> So what is the best site can I use to ask for a recommended library or tool?

There is a stackexchange site for this, http://softwarerecs.stackexchange.com/
> who are dangerous or detrimental to society remain excluded from roaming the streets and causing more trouble

This is not the point of prison. Whites and blacks, for example, use drugs and sell drugs at the same rates. Yet blacks are incarcerated at a much higher rate relative to their representation in the general population.

Throughout the entire criminal justice process, from arrest to prosecution / plea bargaining to sentencing, blacks are discriminated against and receive much harsher treatment than whites.

More accurate would be, 'people who we perceive to be more dangerous'.

The number of federal and state non-violent drug offenders have increased by 750% and 1100% respectively since 1980. Do you really think that these people are so dangerous?

On top of this, a good portion of felony convictions are erroneous, and recidivism rates are near 67%, meaning our prisons are actively creating criminals.

Regardless, I was asking the question to try and inspire thought about what prison should be. I should have been more clear.
I think the "unable of running a secure website, let alone a financial exchange" part of your comment goes to the "dramatically underpriced the risk" part of my comment.

Denying their technical expertise is more interesting. I've heard that theory often, and yet there are plenty of people I thought were technically proficient who lost money.

Indeed, I have some (small) amount of money in another Bitcoin exchange - it is convenient.

Perhaps the level of technical expertise of these users is roughly that of an average HN reader: ie, somewhat higher than the general population.
Ask HN: Feedback for an API to send triggered emails?
Hi HN,
Would love some feedback on our service. Triggering emails from your code sounds like a solved problem. We think not. Instead of writing your email logic in your code, we ask you to send events to us, as you'd do with Mixpanel/GA. You can then configure emails as triggers from our dashboard.

Benefits:

* Flexibility in adding/modifying your emails without code changes

* Test out different schedule intervals, email messages

* Add drip campaigns based on customer events - an "ordered" event is enough to send a transaction email, a feedback email and perhaps even a reminder email for a repeat purchase.

* We are adding support for push notifications/sms next, so especially useful if you are already sending different kinds of messages.

What do you think about the service? Would you use it?

(website: www.nudgespot.com/developers, in case you are curious)

(I tried posting this yesterday, but didn't see any responses, sorry for the repost.)
Even if they have to pump energy into them to melt the snow, I'd still see it as a HUGE feature, and a big bonus to the solar roadway itself. They are not just "solar roadways". They are also "smart roadways". The changing of signs and whatnot is also a big feature, although I'm a little worried of hacking with that one.
The documentation is so good, you need a beautifully crafted website with english sentences, standard typography / web styles, and acommpanying visual diagrams...simply to learn how to use the "help" feature.
I don't know any, but I don't live in the Amazon. If you ask them, they might say yes. And apparently she chose him, so...
You could use a proxy between the ipad and the server to strip the ssl and get the password.

I have used chralesproxy[1] to do something similar, but you might want to try proxy.app it was just mentioned here on HN a couple days ago[2]

1: http://www.charlesproxy.com/
2: https://news.ycombinator.com/item?id=7777807