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What does the exclamation mark do before the function?
... so we can call it:
!function () {}()
This will also return the boolean opposite of the return value of the function, in this case true, because !undefined is true. If you want the actual return value to be the result of the call, then try doing it this way:
(function () {})()
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Remove non-utf8 characters from string
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what to use instead $regex = <<<'END' for PHP < 5.3.x ?
– serhio
Apr 8 '10 at 23:00
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Set default CRAN mirror permanent in R
...TE MIRROR")))
to your .Rprofile
Alternatively, you can set the mirror site-wide in your Rprofile.site. The location of the file is given by ?Startup:
The
path of this file is taken from the value of the R_PROFILE
environment variable (after tilde expansion). If this variable ...
Remove local git tags that are no longer on the remote repository
...s git ls-remote).
As an aside, git show-ref has an option that does the opposite of what you'd like. The following command would list all the tags on the remote branch that you don't have locally:
git ls-remote --tags origin | git show-ref --tags --exclude-existing
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Google Play app description formatting
... my app description (eg. indent, links, lists..). But I cannot find any website where possible formatting is listed. Google Help pages cannot help me either on this subject. There exists a lot of different formats and I don't really know which one to use (eg. HTML or wiki formatting..)
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Disable hover effects on mobile browsers
I'm writing a Web site that's meant to be used from both desktops and tablets. When it's being visited from a desktop, I want the clickable areas of the screen to light up with :hover effects (different background color, etc.) With a tablet, there's no mouse, so I don't want any hover effects.
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What is the meaning of the planned “private protected” C# access modifier?
...to explain), so the arrow points in the least restrictive "direction". The opposite convention for the arrows could have been just as good, by the way, but I had to choose one convention.
– Jeppe Stig Nielsen
Apr 8 '14 at 22:13
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Parse JSON String into a Particular Object Prototype in JavaScript
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I suppose you could do the "opposite" of this, as well. Construct a blank Foo Object and copy the properties from fooJSON into the new Foo Object. Finally, set fooJSON to point to the Foo Object.
– BMiner
May 3 '...
Does every web request send the browser cookies?
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Is it true that browser send Site2 Cookies when there is a HTTP Redirection from Site1 to Site2?
– Zeigeist
Oct 2 '18 at 22:18
ad...
Unnecessary curly braces in C++?
... extremely hard to do. 90% of developers (myself likely included) have the opposite problem.
– Ben Lee
Mar 20 '12 at 18:22
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