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Create a devise user from Ruby console
...e, make sure you are setting the confirmed_at value to something like Time.now while creating.
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Why were pandas merges in python faster than data.table merges in R in 2012?
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It looks like Wes may have discovered a known issue in data.table when the number of unique strings (levels) is large: 10,000.
Does Rprof() reveal most of the time spent in the call sortedmatch(levels(i[[lc]]), levels(x[[rc]])? This isn't really the join itself (t...
Swift Beta performance: sorting arrays
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tl;dr Swift 1.0 is now as fast as C by this benchmark using the default release optimisation level [-O].
Here is an in-place quicksort in Swift Beta:
func quicksort_swift(inout a:CInt[], start:Int, end:Int) {
if (end - start < 2){
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How do I run a Python program in the Command Prompt in Windows 7?
...s with the Command Prompt on Windows 7. (I should have figured this out by now...)
23 Answers
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This IP, site or mobile application is not authorized to use this API key
...rlatitude,yourlongitude&radius=5000&sensor=true&key=SERVERKEY
Now, to obtain the server key, just follow these steps:
1) Go to Developer Console https://code.google.com/apis/console/
2) In the Credentials, under Public API Access, Create New key
3) Select the server key from the opti...
How to check if a number is a power of 2
...that
is, the result is true if and only if both its operands are true.
Now let's take a look at how this all plays out:
The function returns boolean (true / false) and accepts one incoming parameter of type unsigned long (x, in this case). Let us for the sake of simplicity assume that someone ...
How to determine when Fragment becomes visible in ViewPager
...ibrary update (rev 11), the user visible hint issue is finally fixed. It's now safe to use user visible hint for ViewPager.
– Oasis Feng
Nov 14 '12 at 3:05
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How to use Git?
... just edit the Answer (added an alternate to a dead link). If not, let me know. (I figured it's easier to just ask YOU than to find the rule on this)
– Clay Nichols
Aug 14 '16 at 16:22
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Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?
...d your credentials in your SO profile. It took me some digging around. But now that I see that you seem to work on the VM team, I'll accept your answer as the official answer. :)
– Thierry-Dimitri Roy
Mar 11 '11 at 18:03
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How can I recognize touch events using jQuery in Safari for iPad? Is it possible?
...tically passed to the handler. For the safari browser (and android too) it now contains an array of all the touches the user has made on the screen. Each touch has its own properties (x,y coords for example)
– David Pean
Jan 21 '11 at 6:05
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