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SQL JOIN and different types of JOINs
...n top of it. After all, the mere concept of cross join invalidates these informal and inaccurate Venn diagram visualisations...
– Lukas Eder
Apr 21 '17 at 17:25
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Why does the CheckBoxFor render an additional input tag, and how can I get the value using the FormC
...pproach that both Ruby on
Rails and MonoRail use.
When you submit a form with a checkbox, the value is only posted if
the checkbox is checked. So, if you leave the checkbox unchecked then
nothing will be sent to the server when in many situations you would
want false to be sent instead....
Django template how to look up a dictionary value with a variable
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Since I can't comment, let me do this in the form of an answer:
to build on culebrón's answer or Yuji 'Tomita' Tomita's answer, the dictionary passed into the function is in the form of a string, so perhaps use ast.literal_eval to convert the string to a dictionary fir...
What is difference between functional and imperative programming languages?
...a pure functional approach to problem solving. Functional programming is a form of declarative programming.
Advantages of Pure Functions:
The primary reason to implement functional transformations as pure functions is that pure functions are composable: that is, self-contained and stateless. These ...
Which Radio button in the group is checked?
Using WinForms; Is there a better way to find the checked RadioButton for a group? It seems to me that the code below should not be necessary. When you check a different RadioButton then it knows which one to uncheck… so it should know which is checked. How do I pull that information without doing...
What is the difference between the remap, noremap, nnoremap and vnoremap mapping commands in Vim?
... the names.
map is the "root" of all recursive mapping commands. The root form applies to "normal", "visual+select", and "operator-pending" modes. (I'm using the term "root" as in linguistics.)
noremap is the "root" of all non-recursive mapping commands. The root form applies to the same modes as ...
Mercurial - all files that changed in a changeset?
...how the list of files. -p means show patch. You can also use a template to format the output to your taste.
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What is the difference between exit(0) and exit(1) in C?
... the value of status is zero or
EXIT_SUCCESS, an implementation-defined form of the status successful termination is
returned. If the value of status is EXIT_FAILURE , an implementation-defined form
of the status unsuccessful termination is returned. Otherwise the status returned is
implem...
getting the ng-object selected with ng-change
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This solution is good if you need to format the value. Using just the Select approach I couldn't format the value easily.
– mbokil
Apr 7 '16 at 15:53
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Should logger be private static or not
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The advantage of the non-static form is that you can declare it in an (abstract) base class like follows without worrying that the right classname will be used:
protected Log log = new Log4JLogger(getClass());
However its disadvantage is obviously that a...