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IList vs IEnumerable for Collections on Entities
...u need to access the count method and the like for example: IEnumerable<string> enumerable = <some-IEnumerable> List<string> myList = new List<string>(enumerable); However, how you expose your collection should depend on considerations such as whether you want the collection ...
Using .sort with PyMongo
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If it is only one field, it can be .sort("_id", 1)
– Haris Np
Mar 15 '18 at 11:51
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How to bring back “Browser mode” in IE11?
...s Ctrl+8.
On the Document mode list under Mode, click 9.
On the User agent string list under Mode, click Internet Explorer 9.
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How to access class constants in Twig?
...od about this is that it makes it easy to use a Twig variable instead of a string literal as the constant name.
– CJ Dennis
Jun 6 '18 at 1:45
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Generate a UUID on iOS from Swift
In my iOS Swift app I want to generate random UUID ( GUID ) strings for use as a table key, and this snippet appears to work:
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The import org.junit cannot be resolved
...ask how to run the Java class if it doesn't have a public static void main(String[] args)
– Luiggi Mendoza
Feb 27 '13 at 6:30
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TCP: can two different sockets share a port?
...protocols as well (for example, on unix sockets, a "port" is essentially a string).
The main problem is the following: if an incoming packet arrives, the kernel can identify its socket by its destination port number. It is a most common way, but it is not the only possibility:
Sockets can be iden...
Python/postgres/psycopg2: getting ID of row just inserted
...NG id")
id_of_new_row = cursor.fetchone()[0]
And please do not build SQL strings containing values manually. You can (and should!) pass values separately, making it unnecessary to escape and SQL injection impossible:
sql_string = "INSERT INTO domes_hundred (name,name_slug,status) VALUES (%s,%s,%s...
How to remove element from an array in JavaScript?
...Benefits of this function is that you can use it on complex array not just string and number.
Some examples :
Remove first element :
// Not very useful but it works
function removeFirst(element, index) {
return index > 0;
}
var arr = [1,2,3,5,6].filter(removeFirst); // [2,3,4,5,6]
Rem...
DLL and LIB files - what and why?
... example if you write a function that counts the number of characters in a string, that function will be useful in lots of programs. Once you get that function working correctly you don't want to have to recompile the code every time you use it, so you put the executable code for that function in a ...