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Using a 'using alias = class' with generic types? [duplicate]
...laration without supplying type arguments.
namespace N2
{
using W = N1.A; // Error, cannot name unbound generic type
using X = N1.A.B; // Error, cannot name unbound generic type
using Y = N1.A<int>; // Ok, can name closed constructed type
using Z<T> = ...
What's the best way to get the last element of an array without deleting it?
...rray_slice($array, -1))[0]; || W1 + W2 | N1 | - | - | - | - | - || W1 + W2 | N1 | - | - | - | - | - || W1 + W2 | ...
Assigning variables with dynamic names in Java
...ough quick and dirty example is this:
public class T {
public Integer n1;
public Integer n2;
public Integer n3;
public void accessAttributes() throws IllegalArgumentException, SecurityException, IllegalAccessException,
NoSuchFieldException {
for (int i = 1; i &...
How to ignore xargs commands if stdin input is empty?
...gt;, -n <#args>, -i, and -I <string>:
ls /empty_dir/ | xargs -n10 chown root # chown executed every 10 args or fewer
ls /empty_dir/ | xargs -L10 chown root # chown executed every 10 lines or fewer
ls /empty_dir/ | xargs -i cp {} {}.bak # every {} is replaced with the args from one input...
创业公司如何实施敏捷开发 - 资讯 - 清泛网 - 专注C/C++及内核技术
...总数和日期一起绘制，每天记录一下，可以看到每天还剩多少个任务，直到任务数为0 ，这个sprint就完成了）
6、sprint评审会议是在sprint完成时举行，要向客户演示自己完成的软件产品 。
7、最后是sprint总结会议，以轮流发言方...
Get most recent file in a directory on Linux
...
ls -t | head -n1
This command actually gives the latest modified file in the current working directory.
share
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improve this answer...
Difference between namespace in C# and package in Java
...t statement or fully-qualified name to mention the specific type.
package n1.n2;
class A {}
class B {}
or
package n1.n2;
class A {}
Another source file:
package n1.n2;
class B {}
Package cannot be nested. One source file can only have one package statement.
C#
Namespaces are...
How to upgrade all Python packages with pip?
...list --outdated --format=freeze | grep -v '^\-e' | cut -d = -f 1 | xargs -n1 pip install -U
Note: there are infinite potential variations for this. I'm trying to keep this answer short and simple, but please do suggest variations in the comments!
In older version of pip, you can use this instead...
Bulk insert with SQLAlchemy ORM
..._orm_bulk_insert(n=100000):
init_sqlalchemy()
t0 = time.time()
n1 = n
while n1 > 0:
n1 = n1 - 10000
DBSession.bulk_insert_mappings(
Customer,
[
dict(name="NAME " + str(i))
for i in xrange(min(10000, n1))
...
Highlight the difference between two strings in PHP
... $diffValues = array();
$diffMask = array();
$dm = array();
$n1 = count($from);
$n2 = count($to);
for ($j = -1; $j < $n2; $j++) $dm[-1][$j] = 0;
for ($i = -1; $i < $n1; $i++) $dm[$i][-1] = 0;
for ($i = 0; $i < $n1; $i++)
{
for ($j = 0; $j < $n2;...