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Which is faster: Stack allocation or Heap allocation
...t want that code optimized. It strikes me as being very similar to paying extra for valet parking, but refusing to hand over the keys. In this particular case, I don't want the optimizer running.
Using a slightly modified version of the benchmark (to address the valid point that the original prog...
How can I recover the return value of a function passed to multiprocessing.Process?
...xample shows how to use a list of multiprocessing.Pipe instances to return strings from an arbitrary number of processes:
import multiprocessing
def worker(procnum, send_end):
'''worker function'''
result = str(procnum) + ' represent!'
print result
send_end.send(result)
def main()...
How to pass an array within a query string?
Is there a standard way of passing an array through a query string?
10 Answers
10
...
What does git rev-parse do?
...lize arguments in a script (kind of similar to getopt) and print an output string that can be used with eval
Massage just implies that it is possible to convert the info from one form into another i.e. a transformation command. These are some quick examples I can think of:
a branch or tag name i...
How to add one day to a date? [duplicate]
... database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.* classes.
Where to obtain the java.time classes?
Java SE 8, Java SE 9, Java SE 10, and later
Built-in.
Part of the standard Java API with a bundled implementation.
Java 9 adds some minor ...
How to execute a raw update sql with dynamic binding in rails
...
ActiveRecord::Base.connection has a quote method that takes a string value (and optionally the column object). So you can say this:
ActiveRecord::Base.connection.execute(<<-EOQ)
UPDATE foo
SET bar = #{ActiveRecord::Base.connection.quote(baz)}
EOQ
Note if you're in a Ra...
Entity Framework: One Database, Multiple DbContexts. Is this a bad idea? [closed]
...agnostic
{
[Key]
public Guid DiagnosticID { get; set; }
public string ApplicationName { get; set; }
public DateTime DiagnosticTime { get; set; }
public string Data { get; set; }
}
If you like you could mark all entities as protected inside the main ApplicationDbContext, then cr...
How to write one new line in Bitbucket markdown?
...
this places an extra blank link between line1 and line2 in bitbucket readme.md files
– simpleuser
Jul 17 '19 at 21:34
...
Difference between method and function in Scala
...nd co-variant on the result.
That variance means that a Function1[Seq[T], String] is a subtype of Function1[List[T], AnyRef]. Being a subtype means it can be used in place of it. One can easily see that if I'm going to call f(List(1, 2, 3)) and expect an AnyRef back, either of the two types above w...
Accessing nested JavaScript objects and arays by string path
...is based on some similar code I already had, it appears to work:
Object.byString = function(o, s) {
s = s.replace(/\[(\w+)\]/g, '.$1'); // convert indexes to properties
s = s.replace(/^\./, ''); // strip a leading dot
var a = s.split('.');
for (var i = 0, n = a.length; i &...