spicyj

79 ms·

781.
by spicyj 14y ago
At Khan Academy, we actually have terabytes of data; some of our tables have close to a billion rows. Our backend does much more than just serve static files -- you'd think that we don't have to do much but we keep track of video and exerci
782.
by spicyj 14y ago
I believe you don't need an iPhone and you can call them to set up an account if you don't have one.
783.
by spicyj 14y ago
Has anyone here used Elastic Beanstalk? What were your experiences?
784.
John Resig: Redefining the Introduction to Computer Science at Khan Academy(ejohn.org)
480 points by spicyj 14y ago|119 comments
785.
Khan Academy Launches The Future of Computer Science Education(techcrunch.com)
7 points by spicyj 14y ago|0 comments
786.
by spicyj 14y ago
The article lists [][+[]] for undefined; you can get away with just [][[]].
787.
Preventing XSS attacks when embedding JSON in HTML(benalpert.com)
4 points by spicyj 14y ago|0 comments
788.
by spicyj 14y ago
A small note: "The Khan Academy" should just be "Khan Academy", and "DuoLingo" should be "Duolingo".
789.
by spicyj 14y ago
I don't know Common Lisp, but it doesn't look to me like that works. Can you explain how it works?
790.
by spicyj 14y ago
My Python solution: def add1(arr, val, n): it = xrange(len(arr)) if n < 0: it = reversed(it) n *= -1 found = 0 for i in it: if arr[i] == val: arr
791.
by spicyj 14y ago
You could also say -n if you didn't want to say abs. I found the problem confusing because of how it was written. Also, unless I'm mistaken, you can lose the "if (n === 0)" case completely.
792.
by spicyj 14y ago
Please make a single post of a couple paragraphs.
793.
by spicyj 14y ago
Khan Academy - Mountain View - (full-time and intern, designers and devs) Our mission is to provide a world-class education to anyone, anywhere. We're scaling quickly. Our students answer over 2 million math problems per day (over 600M tota
794.
by spicyj 14y ago
I've been seeing this in many sites including Gmail and Facebook so it's probably not your bug.
795.
The Khan Academy Goes to Camp(video.nytimes.com)
1 points by spicyj 14y ago|0 comments
796.
by spicyj 14y ago
Weird, I've always had going through Google work.
797.
by spicyj 14y ago
Try this: http://www.google.com/url?q=http://online.wsj.com/article/SB...
798.
Rolling back to an old revision in Mercurial (like git reset)(benalpert.com)
1 points by spicyj 14y ago|0 comments
799.
by spicyj 14y ago
If you always implemented it the most general way, sure, but most people don't write lazy, curried functions when using JS (and often needn't when writing Haskell even though it makes more sense in that case).
800.
by spicyj 14y ago
I don't know very much about Haskell, but this looks really great from a quick glance. I wonder how performance compares to plain JS – surely all the laziness and resulting JS closures have a cost.
801.
by spicyj 14y ago
The complete text: Quick Nexus 7 comments.. So far: very positive. Yes, the camera is front-facing only, and there's a good reason there's not even a camera app on the thing by default: it's pretty nasty. But does anybody really care?
802.
by spicyj 14y ago
Is there any chance that the telco will win the suit?
803.
by spicyj 14y ago
Presumably they might already attempt to do this -- the article reads: > I took that to heart in tracking down this do-not-forward-oops memo — which I changed around a bit to thwart those who try to stop me from getting these emails via
804.
by spicyj 14y ago
Ooh, nice -- thanks for the pointer.
805.
by spicyj 14y ago
I wonder if it's possible to hook this up to something like Vagrant http://vagrantup.com to use a buildpack for local development and easily install all the required dependencies.
806.
by spicyj 14y ago
(IE 5.5 and older.)
807.
by spicyj 14y ago
Can you turn that off? Many people use password managers.
808.
by spicyj 14y ago
IIRC you store taste preferences per-user – is it possible to have different subsets of people order food each day?
809.
by spicyj 14y ago
What's the minimum number of people necessary to use ZeroCater?
810.
How we ran the first Khan Academy Healthy Hackathon(bjk5.com)
6 points by spicyj 14y ago|0 comments

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