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What's the easy way to auto create non existing dir in ansible
...
That seems to check if the directorty exists, but it doesn't seem to create it.
– Matt
Feb 10 '16 at 3:32
8
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MySQL and GROUP_CONCAT() maximum length
..., 'data'),
(4, 'text four', 'magic');
This query is a bit strange but it does not need another query to initialize the variable; and it can be embedded in a more complex query.
It returns all the 'field2's separated by a semicolon.
SELECT result
FROM (SELECT @result := '',
(SELEC...
Reading an Excel file in python using pandas
... In pandas 15.0.2, parsed = pd.io.parsers.ExcelFile.parse(xl, "Sheet1") does not work and throws error module object has no attribute ExcelFile . parsed = pd.io.excel.ExcelFile.parse(xl, "Sheet1") works for me
– Neil
May 12 '16 at 14:11
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URL encoding in Android
...lternatively, you can use Strings.urlEncode(String str) of DroidParts that doesn't throw checked exceptions.
Or use something like
String uri = Uri.parse("http://...")
.buildUpon()
.appendQueryParameter("key", "val")
.build().toString();
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Jquery insert new row into table at a certain index
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this fails, if there are no rows in the table, does anyone have a solution(index based) which works even for the first row?
– MartinM
Apr 29 '14 at 13:20
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Show hide fragment in android
...with the visibility flags of the container - FragmentTransaction.hide/show does that internally for you.
So the correct way to do this is:
FragmentManager fm = getFragmentManager();
fm.beginTransaction()
.setCustomAnimations(android.R.animator.fade_in, android.R.animator.fade_out)
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What is the equivalent of “colspan” in an Android TableLayout?
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Yup, this is the one. The Eclipse layout widget doesn't seem to know about it, however, as it was not listed among the available properties. But it does work.
– Spike Williams
Apr 26 '10 at 13:30
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How to remove spaces from a string using JavaScript?
...e(/\s+/g, '');
is a better solution. It produces the same result, but it does it faster.
The Regex
\s is the regex for "whitespace", and g is the "global" flag, meaning match ALL \s (whitespaces).
A great explanation for + can be found here.
As a side note, you could replace the content betwe...
How to find the duration of difference between two dates in java?
...ays if the end date occurs during daylight savings time but the start date does not.
– Dawood ibn Kareem
Jun 14 '17 at 2:40
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Ruby off the rails
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Ruby with a homebrew extension written in C++ does all the heavy pixel pushing for my photography processing. I was using Python+numpy but when doing artsy stuff, Ruby is just more fun. Also the relative lack of, or lesser maturity of, good image processing libraries m...