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How to map and remove nil values in Ruby
...nerating nils then sifting through the array to remove them later.
'Just my $%0.2f.' % [2.to_f/100]
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Git resolve conflict using --ours/--theirs for all files
... --theirs and --ours are not available neither with git 2.2.0. Either my answer was not precise or they were available in older git version (this answer is pretty old in IT epoch). The right approach is with -X. I update accordingly
– ThanksForAllTheFish
J...
In what order do static/instance initializer blocks in Java run?
...s and Chris's answers are both great, I'm just adding some more detail for my specific question.
Static init blocks run in the order in which their classes are initialized. So, what order is that? Per JLS 12.4.1:
A class or interface type T will be initialized immediately before the first occ...
Static implicit operator
... is a conversion operator. It means that you can write this code:
XmlBase myBase = new XmlBase();
XElement myElement = myBase;
And the compiler won't complain! At runtime, the conversion operator will be executed - passing myBase in as the argument, and returning a valid XElement as the result.
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MYSQL Dump only certain rows
I am trying to do a mysql dump of a few rows in my database. I can then use the dump to upload those few rows into another database. The code I have is working, but it dumps everything. How can I get mysqldump to only dump certain rows of a table?
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initializing a Guava ImmutableMap
...g a map. However I get the following compiler error (Eclipse Indigo) when my map initializes to nine entries.
3 Answers
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Java URL encoding of query string parameters
...re case that you only need to encode a parameter value. Its why I provided my "confused" wiki answer to help folks like @sharadendusinha.
– Adam Gent
Aug 3 '17 at 12:41
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Rails - Nested includes on Active Records?
...ose magical answers that I have found multiple times years apart and saves my ass every time. This is what the docs should look like
– Andrew
May 31 '18 at 11:33
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I need to store postal codes in a database. How big should the column be?
I expect the column to be a VARCHAR2, in my Oracle Database.
8 Answers
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Checking if a folder exists (and creating folders) in Qt, C++
...der" exists use:
QDir("Folder").exists();
To create a new folder named "MyFolder" use:
QDir().mkdir("MyFolder");
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