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How to convert Set to Array?
... values in an array and then converting back to an Array, try using this:
_.uniq([])
This relies on using underscore or lo-dash.
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How do I rename a column in a database table using SQL?
... This is also not supported in Microsoft SQL Server. Instead use sp_rename as per Galwegian's answer: stackoverflow.com/a/174586/834431
– Chris
Dec 11 '13 at 13:15
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How to convert std::string to lower case?
...thm/string.hpp>
std::string str = "HELLO, WORLD!";
boost::algorithm::to_lower(str); // modifies str
Or, for non-in-place:
#include <boost/algorithm/string.hpp>
const std::string str = "HELLO, WORLD!";
const std::string lower_str = boost::algorithm::to_lower_copy(str);
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Class 'DOMDocument' not found
...dom in Configure Command, what should i do next?
– ws_123
Jan 18 '13 at 9:38
That depends on your system. Worst case y...
How to get the filename without the extension from a path in Python?
...hould merit it's own official command? Something like os.path.filename(path_to_file) instead of os.path.splitext(os.path.basename(path_to_file))[0]
– Fnord
Jul 2 '14 at 17:13
20
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How to make a phone call using intent in Android?
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You can use Intent.ACTION_DIAL instead of Intent.ACTION_CALL. This shows the dialer with the number already entered, but allows the user to decide whether to actually make the call or not. ACTION_DIAL does not require the CALL_PHONE permission.
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Pandas: drop a level from a multi-level column index?
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You can use MultiIndex.droplevel:
>>> cols = pd.MultiIndex.from_tuples([("a", "b"), ("a", "c")])
>>> df = pd.DataFrame([[1,2], [3,4]], columns=cols)
>>> df
a
b c
0 1 2
1 3 4
[2 rows x 2 columns]
>>> df.columns = df.columns.droplevel()
>>>...
Convert Unix timestamp to a date string
...standard Perl solution is:
echo $TIMESTAMP | perl -nE 'say scalar gmtime $_'
(or localtime, if preferred)
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Checking for an empty field with MySQL
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I have same comment as Quassnoi's. I issue "select orig_id,hotline from normal_1952 where !(hotline > '')" and there's one record with null hotline but it doesn't match.I'm using MySQL 5.6
– Scott Chu
Apr 15 '16 at 10:16
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Android Studio Google JAR file causing GC overhead limit exceeded error
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this solved my issue. but i;ts creating a file called java_pid1512.hprof which is very large. i am guessing your Dfile option is creating it ? is it necessary and can you show how to remove the dump to file
– j2emanue
Aug 6 '17 at 7:15
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