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Convert a list of data frames into one data frame
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Use bind_rows() from the dplyr package:
bind_rows(list_of_dataframes, .id = "column_label")
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Is it possible to clone html element objects in JavaScript / JQuery?
...ipt using the cloneNode() method:
// Create a clone of element with id ddl_1:
let clone = document.querySelector('#ddl_1').cloneNode( true );
// Change the id attribute of the newly created element:
clone.setAttribute( 'id', newId );
// Append the newly created element on element p
document.quer...
Serving favicon.ico in ASP.NET MVC
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At first, this seemed like absolute bull to me, but apparantly there is no way around it, our logging keeps showing 404 errors from different user agents.
– Michiel Cornille
Sep 20 '16 at 8:14
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What are some (concrete) use-cases for metaclasses?
...ate methods, than to do something like:
class PlottingInteractive:
add_slice = wrap_pylab_newplot(add_slice)
This method doesn't keep up with API changes and so on, but one that iterates over the class attributes in __init__ before re-setting the class attributes is more efficient and keeps t...
What is the purpose of the word 'self'?
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But in __init__(self) method, it accepts self, then even without creating the object, how does it refer to itself?
– saurav
Jan 28 '18 at 10:10
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Can I map a hostname *and* a port with /etc/hosts? [closed]
... I am using this trick to map ports of a remote machine (e.g. cloud.app:80 while the actual port is 8080). Very useful for testing Confluence nodes of a cluster but accessing them on the same base URL. Thanks!
– Gábor Nagy
Mar 7 '17 at 11:46
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How to fix UITableView separator on iOS 7? [duplicate]
...screen.
[tableView setSeparatorInset:UIEdgeInsetsZero];
Note: If your app is also targeting other iOS versions, you should check for the availability of this property before calling it by doing something like this:
if ([tableView respondsToSelector:@selector(setSeparatorInset:)]) {
[tableV...
How to make a Java Generic method static?
...'s how to explicitly invoke a static generic method using a specific type (_class_.<_generictypeparams_>_methodname_):
String[] newStrings = ArrayUtils.<String>appendToArray(strings, "another string");
This would only happen if the compiler can't determine the generic type because, e....
What is dynamic programming? [closed]
...e only the necessary partial results along the way:
def fibonacci(n):
fi_minus_2 = 0
fi_minus_1 = 1
for i in range(2, n + 1):
fi = fi_minus_1 + fi_minus_2
fi_minus_1, fi_minus_2 = fi, fi_minus_1
return fi
How apply dynamic programming?
Find the recursion in the problem.
T...
LINQ to Entities case sensitive comparison
...ase sensitivity is at the mercy of your SQL Server which by default has SQL_Latin1_General_CP1_CI_AS Collation and that is NOT case sensitive.
Using ObjectQuery.ToTraceString to see the generated SQL query that has been actually submitted to SQL Server reveals the mystery:
string sqlQuery = ((Object...