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What package naming convention do you use for personal/hobby projects in Java?
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If you're just doing personal projects where nobody else will use the code, then you can make up a package name that you like. Don't make up something that starts with com. or net. or other top-level domain though, because th...
Get person's age in Ruby
I'd like to get a person's age from its birthday. now - birthday / 365 doesn't work, because some years have 366 days. I came up with the following code:
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What's a good way to overwrite DateTime.Now during testing?
... test, which doesn't feel right. What's the best way to set the date to a known value within the test so that I can test that the result is a known value?
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Relative frequencies / proportions with dplyr
Suppose I want to calculate the proportion of different values within each group. For example, using the mtcars data, how do I calculate the relative frequency of number of gears by am (automatic/manual) in one go with dplyr ?
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ExpandableListView - hide indicator for groups with no children
...upIndicator property takes a state enabled drawable. That is, you can set different image for different states.
When the group has no children, the corresponding state is 'state_empty'
See these reference links:
this and this
For state_empty, you can set a different image which is not confusing,...
Regex to get string between curly braces
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If your string will always be of that format, a regex is overkill:
>>> var g='{getThis}';
>>> g.substring(1,g.length-1)
"getThis"
substring(1 means to start one character in (just past the first {) and ,g...
How do I get the current time zone of MySQL?
Anyone knows if there is such a function in MySQL?
17 Answers
17
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Rotate axis text in python matplotlib
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How to specify axis for this? plg.gca().xticks is not working.
– queezz
Aug 7 at 9:47
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SQL Switch/Case in 'where' clause
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This is will give a slightly different result as the Case statement exits after a condition is met - but the OR syntax will evaluate all the possibilities
– tember
May 12 '15 at 18:27
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Cannot create an array of LinkedLists in Java…?
...1000).get(2000)) will make LinkedList iterate 3000 times! Avoid LinkedList if anyone may be indexing into it. ArrayList will index faster, but Fredrik's solution is better overall.
– Steve Zobell
Mar 9 '17 at 20:08
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