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Are list-comprehensions and functional functions faster than “for loops”?
... equivalent for loop (that actually builds a list), most likely because it doesn't have to look up the list and its append method on every iteration. However, a list comprehension still does a bytecode-level loop:
>>> dis.dis(<the code object for `[x for x in range(10)]`>)
1 ...
Is using Random and OrderBy a good shuffle algorithm?
...n't, you get this error: 'System.Collections.Generic.IEnumerable<T>' does not contain a definition for 'ToArray' and no extension method 'ToArray' accepting a first argument of type 'System.Collections.Generic.IEnumerable<T>' could be found (are you missing a using directive or an assemb...
Multiple inheritance/prototypes in JavaScript
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Well, I can do Array.call(...) but it doesn't seem to affect whatever I pass as this.
– Tomáš Zato - Reinstate Monica
Sep 22 '15 at 8:36
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LINQ-to-SQL vs stored procedures? [closed]
...ick the column that gets sorted - in TSQL you might have to use a CTE that does a row_number over each column that could be sorted; in LINQ it can be solved with a few if statements in an afterthought.
– sparebytes
Dec 3 '13 at 17:07
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How to create materialized views in SQL Server?
...functions, and subqueries makes indexed views nearly pointless unless data doesn't change often.
– Suncat2000
Nov 2 '18 at 15:53
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Setting default permissions for newly created files and sub-directories under a directory in Linux?
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This doesn't really provide a solution- he's asking about permissions not ownership, and the only way to do that is with ACLs
– Yarin
Dec 16 '12 at 22:36
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What do pty and tty mean?
...hat acted like a terminal?" Why would we want something like that? And how does another program make use of this pty? My guess is that the pty relays commands or something to the for-real terminal (tty) for the program. Is this correct? If not, ignore my guess and please answer the first part of my ...
Adding Core Data to existing iPhone project
... Returns the managed object context for the application.
// If the context doesn't already exist, it is created and bound to the persistent store coordinator for the application.
var managedObjectContext: NSManagedObjectContext {
if !_managedObjectContext {
let coordinator = self.persist...
Providing white space in a Swing GUI
...k for me so that the GBL code is quite terse and readable. Like the sample does here, I use a default Insets so that I don't have to type it in everytime, and the resultant look is a more "relaxed" layout.
– splungebob
Jul 26 '13 at 16:57
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What is a Context Free Grammar?
...e is a language which can be decided by a deterministic finite automaton." Does that sound better?
– Paul
Jul 16 '11 at 7:05
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