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Javascript - removing undefined fields from an object [duplicate]
...one-liner using ES6 arrow function and ternary operator:
Object.keys(obj).forEach(key => obj[key] === undefined ? delete obj[key] : {});
Or use short-circuit evaluation instead of ternary: (@Matt Langlois, thanks for the info!)
Object.keys(obj).forEach(key => obj[key] === undefined &&a...
XAMPP, Apache - Error: Apache shutdown unexpectedly
...ptions -> Advanced -> Connection.
Uncheck the "Use port 80 and 443 for alternatives for incoming connections" checkbox
Sign Out and Close all Skype windows. Try restarting your Apache.
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How to find the duration of difference between two dates in java?
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Hi first of all thank you so much for your short and nice answer, I am facing one problem on your solution like I have two date 06_12_2017_07_18_02_PM and another one is 06_12_2017_07_13_16_PM, I am getting 286 seconds instead I should get only 46 seconds
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converting a base 64 string to an image and saving it
... when the bytes represent a bitmap. If this is happening save the image before disposing the memory stream (while still inside the using statement).
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std::unique_lock or std::lock_guard?
... will be locked only once on construction and unlocked on destruction.
So for use case B you definitely need a std::unique_lock for the condition variable. In case A it depends whether you need to relock the guard.
std::unique_lock has other features that allow it to e.g.: be constructed without ...
javascript window.location in new tab
...ank');
The second parameter is what makes it open in a new window. Don't forget to read Jakob Nielsen's informative article :)
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Can't open config file: /usr/local/ssl/openssl.cnf on Windows [duplicate]
I have installed OpenSSL 64. I want to use a certificate for my nodejs https server. I ran the following command:
7 Answers...
A Java API to generate Java source files [closed]
I'm looking for a framework to generate Java source files.
15 Answers
15
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What's the best way to inverse sort in scala?
...y] = Ordering.by(_.hashCode)). And indeed, the fact that list is covariant forces this signature.
One can do
list.sorted(Ordering.by((_: TheType).size).reverse)
but this is much less pleasant.
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Longest line in a file
I'm looking for a simple way to find the length of the longest line in a file. Ideally, it would be a simple bash shell command instead of a script.
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