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Clear Text Selection with JavaScript
...ocument.selection implies the existence of an empty() method of it. You've tested for the method in every other case, so you might as well test for empty in the final case too.
– Tim Down
Jul 5 '10 at 10:20
...
How to select rows that have current day's timestamp?
...o show the difference that this makes on the actual execution plans, we'll test with an SQL-Fiddle (an extremely helpful site):
CREATE TABLE test --- simple table
( id INT NOT NULL AUTO_INCREMENT
,`timestamp` datetime --- index timestamp
, d...
CoInitialize浅析一 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...?IsRunningInRPCSS@@YGHXZ ;IsRunningInRPCSS(void)
769AEF83 test eax, eax ;判断当前进程是否是RPCSS
769AEF85 jnz loc_76A0B8ED ;如果是（即返回非0）则返回“灾难性故障”的错...
Why can't I use switch statement on a String?
...the hash code of the label. The corresponding case is an if statement that tests string equality; if there are collisions on the hash, the test is a cascading if-else-if. The second switch mirrors that in the original source code, but substitutes the case labels with their corresponding positions. T...
How to pass argument to Makefile from command line?
...&& echo $${arg:-${1}}`
Here is a job which might call this one:
test:
@echo $(call args,defaultstring)
The result would be:
$ make test
defaultstring
$ make test hi
hi
Note! You might be better off using a "Taskfile", which is a bash pattern that works similarly to make, only wit...
Oracle Differences between NVL and Coalesce
...ession "COALESCE stops at first occurrence of a non-Null value", otherwise test case No. 4 should not raise an error.
Also according to test case No. 5 COALESCE does an implicit conversion of arguments.
DECLARE
int_val INTEGER := 1;
string_val VARCHAR2(10) := 'foo';
BEGIN
BEGIN
DB...
Make EditText ReadOnly
...illiseconds and selecting Paste option unless system clipboard is empty. I tested it with newest available API which is 23.
– patryk.beza
Mar 31 '16 at 12:05
...
Creating a singleton in Python
...ey are separate and encapsulated. The metaclass implementation passes this test. The metaclass is responsible for enforcing the pattern and the created class and subclasses need not be aware that they are singletons. Method #1 fails this test, as you noted with "MyClass itself is a a function, not a...
JavaScript open in a new window, not tab
...
After some more testing, it seems almost any parameters―as long as there is at least one―will open a new window instead of a tab. For example just "top=0" even works in FF 31 and Chrome 36. This is on OpenBSD using the cwm window manager...
How do I check if an integer is even or odd? [closed]
...not believe this to be the case.
Out of curiosity, I created two trivial test case programs:
/* modulo.c */
#include <stdio.h>
int main(void)
{
int x;
for (x = 0; x < 10; x++)
if (x % 2)
printf("%d is odd\n", x);
return 0;
}
/* and.c */
#include <stdi...