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How to programmatically set the layout_align_parent_right attribute of a Button in Relative Layout?
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640
You can access any LayoutParams from code using View.getLayoutParams. You just have to be very a...
Generate list of all possible permutations of a string
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70
There are several ways to do this. Common methods use recursion, memoization, or dynamic program...
Python Pandas: Get index of rows which column matches certain value
...[i] returns the ith row of df. i does not refer to the index label, i is a 0-based index.
In contrast, the attribute index returns actual index labels, not numeric row-indices:
df.index[df['BoolCol'] == True].tolist()
or equivalently,
df.index[df['BoolCol']].tolist()
You can see the differenc...
python: Change the scripts working directory to the script's own directory
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208
This will change your current working directory to so that opening relative paths will work:
i...
Insert string at specified position
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+50
$newstr = substr_replace($oldstr, $str_to_insert, $pos, 0);
http://php.net/substr_replace
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Python Flask Intentional Empty Response
... HTTP server must return something. The HTTP 'empty response' response is 204 No Content:
return ('', 204)
Note that returning a file to the browser is not an empty response, just different from a HTML response.
share
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PDO's query vs execute
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edited May 23 '17 at 12:02
Community♦
111 silver badge
answered Jan 15 '11 at 16:38
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How to see which flags -march=native will activate?
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10
I'm going to suggest that this is suboptimal. The output of --help=target doesn't display CPU cache information, of which the methods both e...
How do I put double quotes in a string in vba?
... handle a quote.
Worksheets("Sheet1").Range("A1").Formula = "IF(Sheet1!A1=0,"""",Sheet1!A1)"
Some people like to use CHR(34)*:
Worksheets("Sheet1").Range("A1").Formula = "IF(Sheet1!A1=0," & CHR(34) & CHR(34) & ",Sheet1!A1)"
*Note: CHAR() is used as an Excel cell formula, e.g. wri...
MySQL: how to get the difference between two timestamps in seconds
...and the TIME_TO_SEC() functions as follows:
SELECT TIME_TO_SEC(TIMEDIFF('2010-08-20 12:01:00', '2010-08-20 12:00:00')) diff;
+------+
| diff |
+------+
| 60 |
+------+
1 row in set (0.00 sec)
You could also use the UNIX_TIMESTAMP() function as @Amber suggested in an other answer:
SELECT UNIX_T...