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Reset the database (purge all), then seed a database
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280
I use rake db:reset which drops and then recreates the database and includes your seeds.rb fil...
Javascript library for human-friendly relative date formatting [closed]
... date) / 1000);
var minute = 60,
hour = minute * 60,
day = hour * 24,
week = day * 7;
var fuzzy;
if (delta < 30) {
fuzzy = 'just then.';
} else if (delta < minute) {
fuzzy = delta + ' seconds ago.';
} else if (delta < 2 * minute) {
fuzzy = 'a minute ago.'
} else i...
Maximum length for MD5 input/output
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244
MD5 processes an arbitrary-length message into a fixed-length output of 128 bits, typically re...
Entity Framework code first unique column
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262
In Entity Framework 6.1+ you can use this attribute on your model:
[Index(IsUnique=true)]
Y...
ByteBuffer.allocate() vs. ByteBuffer.allocateDirect()
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answered Apr 15 '11 at 2:48
Edwin DalorzoEdwin Dalorzo
66.6k2525 gold badges129129 silver badges187187 bronze badges
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Is log(n!) = Θ(n·log(n))?
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Remember that
log(n!) = log(1) + log(2) + ... + log(n-1) + log(n)
You can get the upper bound by
log(1) + log(2) + ... + log(n) <= log(n) + log(n) + ... + log(n)
= n*log(n)
And you can get the lower bound by doing a simil...
Difference between objectForKey and valueForKey?
...an do the following:
NSNumber *anAccountNumber = [NSNumber numberWithInt:12345];
Account *newAccount = [[Account alloc] init];
[newAccount setAccountNumber:anAccountNUmber];
NSNumber *anotherAccountNumber = [newAccount accountNumber];
Using KVC, I can access the property dynamically:
NSNumber ...
Does Parallel.ForEach limit the number of active threads?
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edited Jul 11 '09 at 22:17
answered Jul 11 '09 at 18:53
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Pretty-print an entire Pandas Series / DataFrame
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edited Jun 28 '19 at 13:01
harmonica141
1,06211 gold badge1818 silver badges2323 bronze badges
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What is uint_fast32_t and why should it be used instead of the regular int and uint32_t?
...its on some platforms. It may not be sufficient for your application.
uint32_t is not guaranteed to exist. It's an optional typedef that the implementation must provide iff it has an unsigned integer type of exactly 32-bits. Some have a 9-bit bytes for example, so they don't have a uint32_t.
uint_fa...