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How to clear the interpreter console?
...
As you mentioned, you can do a system call:
For Windows
>>> import os
>>> clear = lambda: os.system('cls')
>>> clear()
For Linux the lambda becomes
>>> clear = lambda: os.system('clear')
...
Why does using an Underscore character in a LIKE filter give me all the results?
... characters. Here you define the escape character with the escape keyword. For details see this link on Oracle Docs.
The '_' and '%' are wildcards in a LIKE operated statement in SQL.
The _ character looks for a presence of (any) one single character. If you search by columnName LIKE '_abc', it wi...
How can I change the color of pagination dots of UIPageControl?
...view:pageControl];
Header file:
//
// PageControl.h
//
// Replacement for UIPageControl because that one only supports white dots.
//
// Created by Morten Heiberg <morten@heiberg.net> on November 1, 2010.
//
#import <UIKit/UIKit.h>
@protocol PageControlDelegate;
@interface PageC...
Determining 32 vs 64 bit in C++
I'm looking for a way to reliably determine whether C++ code is being compiled in 32 vs 64 bit. We've come up with what we think is a reasonable solution using macros, but was curious to know if people could think of cases where this might fail or if there is a better way to do this. Please note we ...
Regular expression for letters, numbers and - _
...',
'screen-new-file.css',
'screen_new.js',
'screen new file.css'
);
foreach ($arr as $s) {
if (preg_match('/^[\w.-]*$/', $s)) {
print "$s is a match\n";
} else {
print "$s is NO match!!!\n";
};
}
?>
The above prints (as seen on ideone.com):
screen123.css is a match
screen...
Can we define implicit conversions of enums in c#?
... .Where(t => t.FieldType == typeof(TDerived));
foreach (var field in fields)
{
TDerived instance = (TDerived)field.GetValue(null);
instance._name = field.Name;
instance._descriptionAttribute = fi...
How to add a progress bar to a shell script?
...
for printf we would have to use this format: printf "#### (50%%)\r", it wouldn't work with single quotes and percent sign needs to be escaped.
– nurettin
Sep 10 '13 at 9:55
...
How to add target=“_blank” to JavaScript window.location?
...
Thanks for contributing an answer to Stack Overflow!Please be sure to answer the question. Provide details and share your research!But avoid …Asking for help, clarification, or responding to other answers.Making statements based o...
How do you properly determine the current script directory in Python?
...er? According to this: stackoverflow.com/a/18489147 answer a cross-platform solution is abspath(getsourcefile(lambda:0))? Or is there something else I'm missing?
– Jeff Ellen
Jul 12 '18 at 6:04
...
What is Autoloading; How do you use spl_autoload, __autoload and spl_autoload_register?
...o a stack/queue and call sequentially when a "new Class" is declared.
So for example:
spl_autoload_register('myAutoloader');
function myAutoloader($className)
{
$path = '/path/to/class/';
include $path.$className.'.php';
}
//-------------------------------------
$myClass = new MyClass...