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Detect when a window is resized using JavaScript ?
...vaScript to trigger a function when the user ends to resize the browser window?
4 Answers
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How can I have linked dependencies in a git repo?
...ipts, I often use libraries (mine or others') that have their own repos. I don't want to duplicate those in my repo and get stuck with updating them every time a new version comes out.
However, when somebody clones the repo, it should still work locally and not have broken links.
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How to navigate through a vector using iterators? (C++)
...t;< endl; // prints d.
break;
}
}
// other easier ways of doing the same.
// using operator[]
cout<<myvector[n]<<endl; // prints d.
// using the at method
cout << myvector.at(n) << endl; // prints d.
...
Why is list initialization (using curly braces) better than the alternatives?
...oustrup's "The C++ Programming Language 4th Edition":
List initialization does not allow narrowing (§iso.8.5.4). That is:
An integer cannot be converted to another integer that cannot hold its value. For example, char
to int is allowed, but not int to char.
A floating-point value cannot be conve...
namespaces for enum types - best practices
.... In a large project, you would not be guaranteed that two distinct enums don't both think they are called eFeelings
For simpler-looking code, I use a struct, as you presumably want the contents to be public.
If you're doing any of these practices, you are ahead of the curve and probably don't ne...
How to check if a json key exists?
So, I get some JSON values from the server but I don't know if there will be a particular field or not.
13 Answers
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Subset of rows containing NA (missing) values in a chosen column of a data frame
...er use =='NA' to test for missing values. Use is.na() instead. This should do it:
new_DF <- DF[rowSums(is.na(DF)) > 0,]
or in case you want to check a particular column, you can also use
new_DF <- DF[is.na(DF$Var),]
In case you have NA character values, first run
Df[Df=='NA'] <- N...
What happens if I define a 0-size array in C/C++?
...ually happens if I define a zero-length array int array[0]; in code? GCC doesn't complain at all.
7 Answers
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Angular ng-repeat Error “Duplicates in a repeater are not allowed.”
...13/06/15/duplicates-in-a-repeater-are-not-allowed-in-angularjs/
AngularJS does not allow duplicates in a ng-repeat directive. This means if you are trying to do the following, you will get an error.
// This code throws the error "Duplicates in a repeater are not allowed.
// Repeater: row in [1,1,1...
Intent - if activity is running, bring it to front, else start a new one (from notification)
...is site: Make sure to get rid of other changes you tried and make sure you do this change to the correct activity. Took me far too long to find out that this solution would've worked if I hadn't tried other solutions as well (e.g. overriding onNewIntent and setting flags)
– lu...