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Get login username in java
...philosophy of write once, run anywhere (introduction of OS specific code), and secondly, it creates a dependency on Sun's implementation of Java.
– Jin Kim
May 19 '09 at 16:28
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Calling closure assigned to object property directly
...n object's property directly without reassigning the closure to a variable and then calling it. Is this possible?
12 Answer...
How to remove the default arrow icon from a dropdown list (select element)?
...ow. There's a pseudo-element for the dropdown arrow on IE:
select::-ms-expand {
display: none;
}
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How do I implement IEnumerable
...yList, you'll find that the List<MyObject> will provide both generic and non-generic enumerators that you can use.
using System.Collections;
class MyObjects : IEnumerable<MyObject>
{
List<MyObject> mylist = new List<MyObject>();
public MyObject this[int index]
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using gitignore to ignore (but not delete) files
...f .gitignore, you can update local git repository by running following command:
git update-index --assume-unchanged <file>
In this case a file is being tracked in the origin repo. You can modify it in your local repo and git will never mark it as changed. Read more at:
http://blog.pagebak...
Visual Studio Post Build Event - Copy to Relative Directory Location
...tion under the same "base" folder. This parent folder is a relative part and can vary based on Source Control settings.
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Combine two ActiveRecord::Relation objects
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If you want to combine using AND (intersection), use merge:
first_name_relation.merge(last_name_relation)
If you want to combine using OR (union), use or†:
first_name_relation.or(last_name_relation)
† Only in ActiveRecord 5+; for 4.2 install ...
Checking length of dictionary object [duplicate]
...
What I do is use Object.keys() to return a list of all the keys and then get the length of that
Object.keys(dictionary).length
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Return JSON response from Flask view
I have a function that analyzes a CSV file with Pandas and produces a dict with summary information. I want to return the results as a response from a Flask view. How do I return a JSON response?
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Nested or Inner Class in PHP
... a class is useful to only one other class, then it is logical to
relate and embed it in that class and keep the two together.
It increases encapsulation.
Consider two top-level classes, A and B, where B needs access to
members of A that would otherwise be declared private. By hiding cla...