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What does “error: option --single-version-externally-managed not recognized” indicate?
...ding PyObjC and astropy ). I've never seen this error before, but it's now also showing up on travis-ci builds for which nothing has changed.
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WITH CHECK ADD CONSTRAINT followed by CHECK CONSTRAINT vs. ADD CONSTRAINT
...e trusted to accurately represent the state of the data in the table right now. It can, however, but can be trusted to check data added and modified in the future.
Additionally, untrusted constraints are disregarded by the query optimiser.
The code to enable check constraints and foreign key const...
Is key-value observation (KVO) available in Swift?
...osure, then `[weak self]` is not needed
print("bar property is now \(object.bar)")
}
}
}
Note, in Swift 4, we now have strong typing of keypaths using the backslash character (the \.bar is the keypath for the bar property of the object being observed). Also, because it's us...
Error: The 'brew link' step did not complete successfully
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The homebrew package for node.js now includes npm again, so this happened to me when I missed the homebrew package's message about removing the standalone version first.
Assuming, like me, you've already broken node/npm by attempting the upgrade before kno...
Change default global installation directory for node.js modules in Windows?
...is in the npm-folders documentation. I don't want to start my Win notebook now so I cannot verify it, but you should only change prefix to C:\Program Files\nodejs in your config file. If you want to change it globally for all users, edit the C:\Program Files\nodejs\npmrc file, otherwise create/edit ...
Regular expression to allow spaces between words
...tl;dr
Just add a space in your character class.
^[a-zA-Z0-9_ ]*$
Now, if you want to be strict...
The above isn't exactly correct. Due to the fact that * means zero or more, it would match all of the following cases that one would not usually mean to match:
An empty string, "".
A string...
MySql export schema without data
I'm using a MySql database with a Java program, now I want to give the program to somebody else.
13 Answers
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Why does ReSharper tell me “implicitly captured closure”?
...n a little astonished to find the rules were different here. The more you know, I guess.
– dlf
Mar 3 '16 at 20:06
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Which way is best for creating an object in JavaScript? Is `var` necessary before an object property
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thanks for your answer ...now i understood your first point we can use way1 if we want something like this myFather=new person("John","Doe",50,"blue"); myMother=new person("gazy","Doe",45,"brown"); myBrother=new person("poll","Doe",15,"blue");
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sizeof single struct member in C
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Wow, I didn't know sizeof((type *)0)->member) works. Am not on my dev machine now, but does this work for all the compilers? Thanks for that Joey.
– Gangadhar
Aug 24 '10 at 5:03
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