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Why `null >= 0 && null
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Relational Comparison: if both values are not type String, ToNumber is called on both. This is the same as adding a + in front, which for null coerces to 0.
Equality Comparison: only calls ToNumber on Strings, Numbers, and Booleans.
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What does the slash mean in help() output?
...ional-only parameters are the ones without an externally-usable name. Upon calling a function that accepts positional-only parameters, arguments are mapped to parameters based solely on their position.
The syntax is now part of the Python language specification, as of version 3.8, see PEP 570 – ...
Add a background image to shape in XML Android
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It is possible but you need to programmatically round the corners of the image. see this stackoverflow.com/questions/2459916/…
– vipul mittal
Oct 30 '14 at 8:18
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How to ignore HTML element from tabindex?
...pears Google Chrome does not support the -1, which makes sense since technically tabIndex only supports 0 -32767 according to linkW3. So when I did this; I used 500. Hackish; but worked.
– Flea
Mar 23 '12 at 20:34
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Powershell equivalent of bash ampersand (&) for forking/running background processes
...yfile.txt is in the current directory.
The output is not displayed automatically. You need to run Receive-Job with the ID of the job as parameter.
NOTE: Regarding your initial example, "bg sleep 30" would not work because sleep is a Powershell commandlet. Start-Process only works when you actually...
Does the order of LINQ functions matter?
Basically, as the question states... does the order of LINQ functions matter in terms of performance ? Obviously the results would have to be identical still...
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Can someone explain the right way to use SBT?
...e 3 flavors of settings (SettingKey, TaskKey, InputKey) - read the section called "Task Keys" in http://www.scala-sbt.org/release/docs/Getting-Started/Basic-Def
Keep those 4 pages open at all times so that you can jump and look up various definitions and examples:
http://www.scala-sbt.org/releas...
What is Autoloading; How do you use spl_autoload, __autoload and spl_autoload_register?
...ods from your own Autoload class) that PHP will put into 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';
}
//------...
How to check file MIME type with javascript before upload?
...er and inspect the first few bytes of the given file to compare against so-called magic numbers. Be warned that it's not entirely straightforward because, for instance, JPEG has a few "magic numbers". This is because the format has evolved since 1991. You might get away with checking only the first ...
Open a URL in a new tab (and not a new window)
...ow is determined by your browser's settings. There's nothing you can do by calling window.open (or any Javascript) to choose how to open the new window/tab.
– Ian
Apr 18 '13 at 13:56
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