大约有 47,000 项符合查询结果（耗时：0.0612秒） [XML]
C++11 range based loop: get item by value or reference to const
...
@racarate: I cannot comment on the overall speed, and I think nobody can, without profiling it first. Frankly, I wont base my choice on the speed, rather the clarity of the code. If I want immutability, I'd use const for sure. However, whether it would be auto co...
What is the !! (not not) operator in JavaScript?
... Partial Obscurity:
val.enabled = (userId != 0) ? true : false;
// And finally, much easier to understand:
val.enabled = (userId != 0);
share
|
improve this answer
|
follow...
“ValueError: zero length field name in format” error in Python 3.0,3.1,3.2
... it! Had to change my shebangs to: #! /usr/local/bin/python3 after looking all over. There is 3 different locations of python installs on Mac -_- wtf.
– Oscar Godson
Mar 27 '11 at 4:16
...
DefaultInlineConstraintResolver Error in WebAPI 2
...traintResolver that Web API ships with does not have an inline constraint called string. The default supported ones are the following:
// Type-specific constraints
{ "bool", typeof(BoolRouteConstraint) },
{ "datetime", typeof(DateTimeRouteConstraint) },
{ "decimal", typeof(DecimalRouteConstraint) }...
Change R default library path using .libPaths in Rprofile.site fails to work
I am running R on Windows, not as an administrator. When I install a package, the following command doesn't work:
15 Answer...
How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
...tionaries in a single expression?
For dictionaries x and y, z becomes a shallowly merged dictionary with values from y replacing those from x.
In Python 3.5 or greater:
z = {**x, **y}
In Python 2, (or 3.4 or lower) write a function:
def merge_two_dicts(x, y):
z = x.copy() # start with x's ...
Drawable image on a canvas
...setBounds(left, top, right, bottom);
d.draw(canvas);
This will work with all kinds of drawables, not only bitmaps. And it also means that you can re-use that same drawable again if only the size changes.
share
|
...
Difference between Visual Basic 6.0 and VBA
...
For nearly all programming purposes, VBA and VB 6.0 are the same thing.
VBA cannot compile your program into an executable binary. You'll always need the host (a Word file and MS Word, for example) to contain and execute your project. ...
H2 in-memory database. Table not found
...e tables with UPPERCASE names then behaving case-sensitive, even though in all scripts (including in the creation ones) i used lowercase.
Solved by adding ;DATABASE_TO_UPPER=false to the connection URL.
share
|
...
How to select only the records with the highest date in LINQ
...
@JasonL, no. The First() call should apply to the g.Order... expression (subquery).
– Mehrdad Afshari
Aug 29 '13 at 8:04
1
...