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In C# check that filename is *possibly* valid (not that it exists) [duplicate]
... edited Apr 30 '17 at 0:51
buræquete
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answered Jan 7 '09 at 21:11
...
What's the difference between the Dependency Injection and Service Locator patterns?
...DI "container" is the one responsible for that.
– Rogério
Feb 18 '10 at 1:37
5
@Rogerio yes but ...
What's the difference between UTF-8 and UTF-8 without BOM?
...ommended but it did wonders to my powershell script when trying to output "æøå"
– Marius
Nov 12 '13 at 9:22
63
...
Numpy: find first index of value fast
...e(100000)
%timeit index(arr, 5) # 1000000 loops, best of 3: 1.88 µs per loop
%timeit find_first(5, arr) # 1000000 loops, best of 3: 1.7 µs per loop
%timeit index(arr, 99999) # 10000 loops, best of 3: 118 µs per loop
%timeit find_first(99999, arr) # 10000 loops, best of 3: 9...
Approximate cost to access various caches and main memory?
... Mutex lock/unlock
100 ns Main memory (RAM)
2 000 ns (2µs) 1KB Zippy-compress
Still some improvements, prediction for 2020
16 000 ns (16µs) SSD random read (olibre's note: should be less)
500 000 ns (½ms) Round trip in datacenter
2 000 000 ns (2ms) HDD random read (s...
Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)
...>> %timeit df3.groupby(df3.index).first()
1000 loops, best of 3: 580 µs per loop
>>> %timeit df3[~df3.index.duplicated(keep='first')]
1000 loops, best of 3: 307 µs per loop
Note that you can keep the last element by changing the keep argument to 'last'.
It should also be noted tha...
Dilemma: when to use Fragments vs Activities:
...nswered Nov 30 '13 at 23:02
VJ Vélan SolutionsVJ Vélan Solutions
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Is there a way to make R beep/play a sound at the end of a script?
...ered Jul 1 '14 at 18:08
Rasmus BååthRasmus Bååth
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Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the La
...indow.atob(b64)));
console.log(str2);
Example:
var str = "äöüÄÖÜçéèñ";
var b64 = window.btoa(unescape(encodeURIComponent(str)))
console.log(b64);
var str2 = decodeURIComponent(escape(window.atob(b64)));
console.log(str2);
Note: if you need to get this to work in mobile-safari, you mi...
What is your preferred style for naming variables in R? [closed]
...ered Nov 16 '12 at 8:55
Rasmus BååthRasmus Bååth
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