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Increment a database field by 1
...complex depending on your specific needs:
INSERT into mytable (logins)
SELECT max(logins) + 1
FROM mytable
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How can I save application settings in a Windows Forms application?
...gs. Right click on the project in Solution Explorer and choose Properties. Select the Settings tab and click on the hyperlink if settings doesn't exist.
Use the Settings tab to create application settings. Visual Studio creates the files Settings.settings and Settings.Designer.settings that contain...
Really Cheap Command-Line Option Parsing in Ruby
...y chairs are in the classroom", :default => 1
p.option :room_number, "select room number", :default => 2, :value_in_set => [1,2,3,4]
end.process!
Calling the script with -h or --help will print
Usage: micro-optparse-example [options]
-v, --[no-]verbose turn on verbose...
What is the difference between JVM, JDK, JRE & OpenJDK?
...exe), Java application launcher (java.exe), Appletviewer, etc…
Compiler converts java code into byte code. Java application launcher opens a JRE, loads the class, and invokes its main method.
You need JDK, if at all you want to write your own programs, and to compile them. For running java progr...
Should I always return IEnumerable instead of IList?
... filters, or transforms your return value. When practical, I like to avoid converting the results of LINQ-to-Objects to a concrete List or Dictionary until I have to. If my caller needs a List, that's a single easy method call away - I don't need to make that decision for them, and that makes my cod...
Proper indentation for Python multiline strings
...P 257:
def trim(docstring):
if not docstring:
return ''
# Convert tabs to spaces (following the normal Python rules)
# and split into a list of lines:
lines = docstring.expandtabs().splitlines()
# Determine minimum indentation (first line doesn't count):
indent = sys...
Round to at most 2 decimal places (only if necessary)
.... Concatenating "e-2" to an number resulted in a string that needed to be converted back to a number.
– Jack
Feb 28 '14 at 19:11
41
...
CSS hexadecimal RGBA?
...and need to create CSS from it at runtime. This requires the extra step of converting from hex to decimal if you want to add alpha to it, which is clunky.
– Beejor
May 5 '15 at 15:17
...
Doctrine and composite unique keys
...ote that you have to provide column names, not field names. So you have to convert camelCase to snake_case and append _id for associations, because that's how Doctrine generates column names.
– gronostaj
Mar 6 '18 at 13:35
...
How to fade to display: inline-block
...a fadeIn() that loads fades in each element with the class .faded in turn, converted to animate() :
Old:
$(".faded").each(function(i) {
$(this).delay(i * 300).fadeIn();
});
New:
$(".faded").each(function(i) {
$(this).delay(i * 300).css('opacity',0).animate({'opacity': 1}, 500);
});
Ho...