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How to create the most compact mapping n → isprime(n) up to a limit N?
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Code-first vs Model/Database-first [closed]
...s don't like any kind of designers and defining mapping in EDMX xml is too complex.
Full control over the code (no autogenerated code which is hard to modify).
General expectation is that you do not bother with DB. DB is just a storage with no logic. EF will handle creation and you don't want to kno...
How to change fontFamily of TextView in Android
...id:fontFamily="sans-serif-medium" // roboto medium (android 5.0)
in combination with
android:textStyle="normal|bold|italic"
this 16 variants are possible:
Roboto regular
Roboto italic
Roboto bold
Roboto bold italic
Roboto-Light
Roboto-Light italic
Roboto-Thin
Roboto-Thin italic
Roboto-...
How to find Unused Amazon EC2 Security groups
...upId' --output text | tr '\t' '\n' | sort | uniq
Then put it together and compare the 2 lists and see what's not being used from the master list:
comm -23 <(aws ec2 describe-security-groups --query 'SecurityGroups[*].GroupId' --output text | tr '\t' '\n'| sort) <(aws ec2 describe-instances ...
What are the rules about using an underscore in a C++ identifier?
It's common in C++ to name member variables with some kind of prefix to denote the fact that they're member variables, rather than local variables or parameters. If you've come from an MFC background, you'll probably use m_foo . I've also seen myFoo occasionally.
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In Java, when should I create a checked exception, and when should it be a runtime exception? [dupli
...xceptions being forgotten until they showed up in production (on agedwards.com), so we resolved to use checked exceptions exclusively.
At my current job, I find that there are many who are for Runtime exceptions in many or all cases.
Here's what I think: Using CheckedExceptions, I am forced at co...
To ARC or not to ARC? What are the pros and cons? [closed]
...old code. It is not garbage collection. It has no GC runtime overhead. The compiler inserts retains and releases in all the places you should have anyway. But it's smarter than you and can optimize out the ones that aren't actually needed (just like it can unroll loops, eliminate temporary variables...
Can dplyr package be used for conditional mutating?
... there. I think this should be in the simplest dplyr tutorials, it is very common to have the need for calculating stuff for subsets of the data, but still wanting to keep the data complete.
– Javier Fajardo
Mar 15 '18 at 21:06
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Does JavaScript have the interface type (such as Java's 'interface')?
...allegedly only works on host objects (that is, DOM elements and such). If compatibility is an issue, you can't use .defineProperty. (I won't even mention IE6, because it's rather irrelevant anymore outside of China.)
Another issue is that some coding styles like to assume that everyone writes bad...
Named Branches vs Multiple Repositories
...med branches the branch name is embedded in each changeset and will thus become an immutable part of the history. With clones there will be no permanent record of where a particular changeset came from.
This means that clones are great for quick experiments where you don't want to record a branch n...