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Which is preferred: Nullable.HasValue or Nullable != null?
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I did some research on this by using different methods to assign values to a nullable int. Here is what happened when I did various things. Should clarify what's going on.
Keep in mind: Nullable<something> or the shorthand something? is a struct f...
Clearing coverage highlighting in Eclipse
...ted in green, red and yellow depending on which lines of code were covered by tests.
10 Answers
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Moving from CVS to Git: $Id$ equivalent?
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By now there is support for $Id:$ in Git. To enable it for file README you would put "README ident" into .gitattributes. Wildcards on file names are supported. See man gitattributes for details.
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how does array[100] = {0} set the entire array to 0?
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int main(void)
{
...
}
then it is the compiler that reserves the 100 0 bytes in the data segement of the program. In this case you could have omitted the initialiser.
If your array is auto, then it is another story.
int foo(void)
{
char array[100] = {0};
...
}
In this case at every call of ...
JavaScript string encryption and decryption?
...encrypted, "Secret Passphrase");
//4d657373616765
document.getElementById("demo1").innerHTML = encrypted;
document.getElementById("demo2").innerHTML = decrypted;
document.getElementById("demo3").innerHTML = decrypted.toString(CryptoJS.enc.Utf8);
Full working sample actually is:
<s...
Update multiple rows in same query using PostgreSQL
...status;
select * from results_dummy;
-- THE update of multiple rows with/by different values
update results_dummy as rd
set status=new.status, updated_at=now()
from (select unnest(array[1,2,5]::int[]) as id,unnest(array['a`','b`','e`']::text[]) as status) as new
where rd.id=new.id;
select * fr...
Concatenating two one-dimensional NumPy arrays
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Here are more approaches for doing this by using numpy.ravel(), numpy.array(), utilizing the fact that 1D arrays can be unpacked into plain elements:
# we'll utilize the concept of unpacking
In [15]: (*a, *b)
Out[15]: (1, 2, 3, 5, 6)
# using `numpy.ravel()`
In [1...
Javascript shorthand ternary operator
...defined?
var foo = bar || 1; // 1
var bar = 2;
foo = bar || 1; // 2
By the way, this works for a lot of scenarios, including objects:
var foo = bar || {}; // secure an object is assigned when bar is absent
share
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Design Patterns: Abstract Factory vs Factory Method
...wered Nov 17 '10 at 23:11
Don RobyDon Roby
38.4k66 gold badges8282 silver badges104104 bronze badges
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How to fix bower ECMDERR
...ns > Web Package Management > External Web Tools, you will see that, by default, there are two git locations:
$(DevEnvDir)\CommonExtensions\Microsoft\TeamFoundation\Team Explorer\Git\cmd
$(DevEnvDir)\CommonExtensions\Microsoft\TeamFoundation\Team Explorer\Git\mingw32\bin
By default (for Vi...