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In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?
...n0o1m142P1P340P/javascript_equality.html - the same graphs as above, but a bit easier to read.
– Lucy Bain
Dec 17 '14 at 22:50
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Show a popup/message box from a Windows batch file
...ing CScript to parse the command line parameters.
Something like the following saved in MessageBox.vbs:
Set objArgs = WScript.Arguments
messageText = objArgs(0)
MsgBox messageText
Which you would call like:
cscript MessageBox.vbs "This will be shown in a popup."
MsgBox reference if you are in...
How can I remove a flag in C?
...
Short Answer
You want to do an Bitwise AND operation on the current value with a Bitwise NOT operation of the flag you want to unset. A Bitwise NOT inverts every bit (i.e. 0 => 1, 1 => 0).
flags = flags & ~MASK; or flags &= ~MASK;.
Long An...
curl POST format for CURLOPT_POSTFIELDS
... @ and use the full path. The filetype can be explicitly specified by following the filename with the type in the format ';type=mimetype'. This parameter can either be passed as a urlencoded string like 'para1=val1&para2=val2&...' or as an array with the field name as key and field data as v...
Mediator Vs Observer Object-Oriented Design Patterns
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The last bit helps. Mediator and Observer both accomplish the same goal, however the mediator enables bi-directional communication while observer works only one way.
– kiwicomb123
Mar 3 '19 at...
Inject errors into already validated form?
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This seems a little bit unpleasant, since the name "_errors" suggests it's supposed to be internal to the form class. Is that the standard way to do this in Django? I'm in a similar situation to the OP: I have a form where users provide a new na...
Simplest/Cleanest way to implement singleton in JavaScript?
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+1 Isn't it a bit strange to look for a "Singleton pattern" in a language with global variables???
– Victor
Oct 28 '09 at 9:18
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How to disable back swipe gesture in UINavigationController on iOS 7
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I've refined Twan's answer a bit, because:
your view controller may be set as a delegate to other gesture recognisers
setting the delegate to nil leads to hanging issues when you go back to the root view controller and make a swipe gesture before navig...
inject bean reference into a Quartz job in Spring?
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You should win an award for this, it is fantastic!
– Nathan Feger
Mar 9 '13 at 1:48
2
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How to measure elapsed time in Python?
...sor time”, depends on that of the C function
of the same name.
On Windows, this function returns wall-clock seconds elapsed since the
first call to this function, as a floating point number, based on the
Win32 function QueryPerformanceCounter(). The resolution is typically
better than...