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Detect viewport orientation, if orientation is Portrait display alert message advising user of instr
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Support for this is much stronger now. This seems to be a much more robust answer now then the accepted one.
– JonK
Jun 28 '16 at 21:56
2
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Why does ++[[]][+[]]+[+[]] return the string “10”?
... itself.
In this case, + sees two operands: a number and an array. It’s now trying to coerce the two into the same type. First, the array is coerced into the string "0", next, the number is coerced into a string ("1"). Number + String === String.
"1" + "0" === "10" // Yay!
Specification deta...
Using “Object.create” instead of “new”
...bject.create has any advantages over using new. On the contrary there are known problems with it. Sam Elsamman describes what happens when there are nested objects and Object.create(...) is used:
var Animal = {
traits: {},
}
var lion = Object.create(Animal);
lion.traits.legs = 4;
var bird = Obj...
Git undo changes in some files [duplicate]
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# the -n means, do not commit the revert yet
git revert -n <sha1>
# now make sure we are just going to commit the revert to A
git reset B
git commit
If on the other hand, you had committed it, but the commit involved rather a lot of files that you do not also want to revert, then the above ...
How to convert an address into a Google Maps Link (NOT MAP)
...: maps.google.com/?ll=38.882147,-76.99017
UPDATE
As of year 2017, Google now has an official way to create cross-platform Google Maps URLs:
https://developers.google.com/maps/documentation/urls/guide
You can use links like
https://www.google.com/maps/search/?api=1&query=1200%20Pennsylvania...
What is the canonical way to trim a string in Ruby without creating a new string?
This is what I have now - which looks too verbose for the work it is doing.
9 Answers
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capturing self strongly in this block is likely to lead to a retain cycle
...h with unrecognized selector to a trash which is contains vcToGo_ variable now. Try to control it.
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How to create permanent PowerShell Aliases
...n SilentlyContinue
powershell_ise.exe .\Microsoft.PowerShell_profile.ps1
Now add your alias to the Microsoft.PowerShell_profile.ps1 file that is now opened:
function Do-ActualThing {
# do actual thing
}
Set-Alias MyAlias Do-ActualThing
Then save it, and refresh the current session with:
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Manually adding a Userscript to Google Chrome
...t": true is required if you want to use any of the supported GM_* methods.
Now, in Chrome's Extension manager (URL = chrome://extensions/), Expand "Developer mode".
Click the Load unpacked extension... button.
For the folder, paste in the folder for your script, In this example it is: C:\MyChromeScr...
Multithreading: What is the point of more threads than cores?
...ou probably have several hundred threads all running on your machine right now. You won't ever get a situation where a thread runs without having time 'stolen' from it. (Well, you might if it's running real-time, if you're using a realtime OS or, even on Windows, use a real-time thread priority. ...