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Best practice to validate null and empty collection in Java
...evaluate the right operand. So if m == null, then m.isEmpty() will not be called (not needed, the result is true).
– icza
Jul 29 '16 at 9:05
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Disable Maven warning message - “Selected war files include a WEB-INF/web.xml which will be ignored”
...if you are happy with the default web.xml then don't write one yourself at all.
– Ustaman Sangat
Oct 17 '12 at 16:07
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show 1 more comment
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What is the difference between .map, .every, and .forEach?
I've always wondered what the difference between them were. They all seem to do the same thing...
4 Answers
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Select objects based on value of variable in object using jq
...t work: termux-contact-list |jq -r '.[] | select(.name=="$1")|.number'. I call it like cool_fn Name1. However, this works: termux-contact-list |jq -r '.[] | select(.name=="Name1")|.number'
– Timo
Aug 18 '18 at 8:13
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JSON.NET Error Self referencing loop detected for type
I tried to serialize POCO class that was automatically generated from Entity Data Model .edmx and when I used
25 Answers
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Properly escape a double quote in CSV
...le double quote to escape a double quote. You can use a command-line tool called csvfix to detect any lines which don't conform: csvfix check -nl -v [filename]
– Sam Critchley
Jun 30 '16 at 14:51
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AsyncTask threads never die
...uriosity, why is it designed like that? Why not just end the threads after all of the methods have returned?
– Computerish
Jun 20 '10 at 2:38
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No Main() in WPF?
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The Main() method is created automatically.
If you want to provide your own you have to (tested in VS2013 and VS2017):
Right-click App.xaml in the solution explorer, select Properties
Change 'Build Action' to 'Page' (initial value is 'ApplicationDefinition')
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Fetch first element which matches criteria
... class, the method filter is invokaded in Train but i want to walk through all Stop elements of the SortedSet stops
– user2147674
Apr 8 '14 at 14:54
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How do I make a WinForms app go Full Screen
... The ordering issue is why it wasn't working for me before. I was actually setting the properties in that order, but when the form is already maximized setting the border to none doesn't expand to cover the taskbar. I worked around by "restoring" the form changing the border and then maximizin...