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Performance of foreach, array_map with lambda and array_map with static function
...xdebug adds quite a lot of overhead, esp to function calls.
This is FGM's script run using 5.6
With xdebug
ForEach : 0.79232501983643
MapClosure: 4.1082420349121
MapNamed : 1.7884571552277
Without xdebug
ForEach : 0.69830799102783
MapClosure: 0.78584599494934
MapNamed : 0.85125398635864
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csv.Error: iterator should return strings, not bytes
...ption isn't the safest. If you can use TextIOWrapper, you should. Issue descriptions: iterdecode eats empty strings iterdecode isn't safe with multi-byte characters The solution: TextIOWrapper on a csv stream
– kavdev
Jan 20 '19 at 16:38
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How to inspect Javascript Objects
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There are few methods :
1. typeof tells you which one of the 6 javascript types is the object.
2. instanceof tells you if the object is an instance of another object.
3. List properties with for(var k in obj)
4. Object.getOwnPropertyNames( anObjectToInspect )
5. Object.getPrototypeOf( ...
Controlling mouse with Python
... of a safety feature that adds a 0.1 second pause after each call. If your script is out of control, you can slam the mouse to the top-left corner in that 0.1 seconds to stop it. To disable this, run pyautogui.PAUSE = 0 (though this is not recommended, because you can't use the mouse/keyboard to sto...
What actually causes a Stack Overflow error? [duplicate]
... to the heap: it simply signals that there is no more memory available.
Description from Virtual Machine Errors (§6.3)
StackOverflowError: The Java Virtual Machine implementation has run out of stack space for a thread, typically because the thread is doing an unbounded number of recursive inv...
How to rename a table in SQL Server?
... can find one of the many tools that can do this for you. Or you can use a script that finds a given string in all these objects, and paste them as ALTER statements, and do a find-and-replace, then run them all.
– MGOwen
Apr 19 '17 at 6:33
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Opening port 80 EC2 Amazon web services [closed]
...: any internet accessible box is liable to be portscanned by blackhats and script kiddies, even if naked to the internet for only a short time. "Reverting back", then continuing to use the potentially compromised server is a no-no for production use. Instead, burn the instance in the fires of hell a...
Accessing MP3 metadata with Python [closed]
... it can handle other formats, such as mp4, FLAC etc. I've written several scripts with a lot of success using this API.
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OSX - How to auto Close Terminal window after the “exit” command executed.
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You could use AppleScript through the osascript command:
osascript -e 'tell application "Terminal" to quit'
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How to clear the interpreter console?
...e's my take on the code to put in (or add to your existing) Python startup script:
# ==== pythonstartup.py ====
# add something to clear the screen
class cls(object):
def __repr__(self):
import os
os.system('cls' if os.name == 'nt' else 'clear')
return ''
cls = cls()
...
