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Why are exclamation marks used in Ruby methods?
... convention, the names of procedures
that store values into previously
allocated locations (see section 3.4)
usually end in ``!''. Such procedures
are called mutation procedures. By
convention, the value returned by a
mutation procedure is unspecified.
...
C char array initialization
...n't work
carray = { [0]=1 }; // expected expression before '{' token
carray = { [0 ... 31]=1 }; // (likewise)
carray = (char[32]){ [0]=3 }; // incompatible types when assigning to type 'char[32]' from type 'char *'
iarray = (int[32]){ 1 }; // (likewise, but s/char/int/g)
...
How to create a generic array in Java?
...are of the correct type.
It works by using class literals as runtime type tokens, as discussed in the Java Tutorials. Class literals are treated by the compiler as instances of java.lang.Class. To use one, simply follow the name of a class with .class. So, String.class acts as a Class object repres...
python requests file upload
...Disposition": "attachment; filename=" + f1.name, "Authorization": "JWT " + token}
res= requests.post(url,data,header)
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self referential struct definition?
...ell *last;
/* Construct linked list, 100 down to 80. */
first = malloc (sizeof (tCell));
last = first;
first->cellSeq = 100;
first->next = NULL;
for (i = 0; i < 20; i++) {
curr = malloc (sizeof (tCell));
curr->cellSeq = last->cellSeq - 1;
...
Objective-C Static Class Level variables
...ialize
{
if (! classVariableName)
classVariableName = [[ClassB alloc] init];
}
+(void) classMethodName
{
[classVariableName doSomething];
}
-(void) instanceMethodName
{
[classVariableName doSomething];
}
...
@end
References:
Class variables explained comparing Objective-C...
SqlDataAdapter vs SqlDataReader
...ata in memory. Obviously with a DataTable or DataSet, you do have a memory allocation overhead.
If you don't need to keep your data in memory, so for rendering stuff only, go for the SqlDataReader. If you want to deal with your data in a disconnected fashion choose the DataAdapter to fill either a ...
What are the implications of using “!important” in CSS? [duplicate]
...ause thats a not operator in javascript but in css it's called a delimiter token that just says to take priority. Heres an example.
Without !important:
.set-color{
color: blue;
}
.set-color{
color: red;
}
outputs RED
!important on bottom attribute (of same)
.set-color{
color: blu...
Return XML from a controller's action in as an ActionResult?
... will restate the point: creating strings is wasteful when you could avoid allocation/collection/out-of-memory-exceptions by using streams, unless you're working on 11 year old computing systems that exhibit an error.
– Drew Noakes
Apr 17 '13 at 10:40
...
How To Test if Type is Primitive
...t.GetTypeCode(type) always returns Object. Also, I'd get rid of that Array allocation for the contains check and convert those type checks to boolean expressions.
– Ronnie Overby
Aug 31 at 13:07
...