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How to avoid explicit 'self' in Python?
...
You can use whatever name you want, for example
class test(object):
def function(this, variable):
this.variable = variable
or even
class test(object):
def function(s, variable):
s.variable = variable
but you are stuck with using a name for the scope....
Is there any particular difference between intval and casting to int - `(int) X`?
...ted in the comments on the PHP doc page and shamelessly reiterated here:
$test_int = 12;
$test_string = "12";
$test_float = 12.8;
echo (int) $test_int; // 12
echo (int) $test_string; // 12
echo (int) $test_float; // 12
echo intval($test_int, 8); // 12 <-- WOAH!
echo i...
How to trim a string in SQL Server before 2017?
...this example, Space, tab, LF and CR characters are being trimmed:
Declare @Test nvarchar(50) = Concat (' ', char(9), char(13), char(10), ' ', 'TEST', ' ', char(9), char(10), char(13),' ', 'Test', ' ', char(9), ' ', char(9), char(13), ' ')
DECLARE @TrimPattern nvarchar(max) = '%[^ ' + char(9) + char(...
Check whether an input string contains a number in javascript
...umber", not "is number". So:
function hasNumber(myString) {
return /\d/.test(myString);
}
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How to execute Python scripts in Windows?
...udio related, specifically when I try to run Python scripts in my AppVeyor tests. See help.appveyor.com/discussions/problems/….
– Jack O'Connor
Dec 21 '15 at 20:07
1
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How to estimate how much memory a Pandas' DataFrame will need?
...thought I would bring some more data to the discussion.
I ran a series of tests on this issue.
By using the python resource package I got the memory usage of my process.
And by writing the csv into a StringIO buffer, I could easily measure the size of it in bytes.
I ran two experiments, each one...
Check if a file exists with wildcard in shell script [duplicate]
... ## If not, f here will be exactly the pattern above
## and the exists test will evaluate to false.
[ -e "$f" ] && echo "files do exist" || echo "files do not exist"
## This is all we needed to know, so we can break after the first iteration
break
done
This is very similar...
Public free web services for testing soap client [closed]
...y publicly available SOAP 1.2 / WSDL 2.0 compliant free web services for testing a Python based soap client library (e.g. Zolera SOAP Infrastructure )?
...
Are nested transactions allowed in MySQL?
...
InnoDB supports SAVEPOINTS.
You can do the following:
CREATE TABLE t_test (id INT NOT NULL PRIMARY KEY) ENGINE=InnoDB;
START TRANSACTION;
INSERT
INTO t_test
VALUES (1);
SELECT *
FROM t_test;
id
---
1
SAVEPOINT tran2;
INSERT
INTO t_test
VALUES (2);
SELECT *
FROM t_test...
VC/MFC 临界区域使用方法实例 - C/C++ - 清泛网 - 专注C/C++及内核技术
...方法：
*.h头文件：
#include <winbase.h>
CRITICAL_SECTION m_cs_test; ///< 定义一个临界区域对象
*.cpp源文件使用方法：
在类的构造函数内初始化临界区域对象
//该函数必须在任何线程调用EnterCriticalSection函数之前被调用，否则结果将...