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Aren't promises just callbacks?
...d error callback for all occurred exceptions.
Not to mention having to convert things to promises.
That's quite trivial actually with good promise libraries, see How do I convert an existing callback API to promises?
s...
How to validate IP address in Python? [duplicate]
...nce Python 3.3. More details here. In Python 2 you will need to explicitly convert the IP address string to unicode: ipaddress.ip_address(u'127.0.0.1').
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Change Author template in Android Studio
...ferences dialog.
2)In the search box, write "File and Code Templates".
3)Select the left menu item "File and Code Templates".
4)From the middle tabular navigation section, select Includes.
5)Select File Header item that applies to the Java files.
6)You will find an editor section that allow you...
Select random lines from a file
...e point is you can keep some lines in memory with shuffle to do the random selection of what to output. Sort is going to sort the entire file, regardless of what your needs are.
– Rubens
Sep 25 '14 at 2:01
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How to select the row with the maximum value in each group
In a dataset with multiple observations for each subject I want to take a subset with only the maximum data value for each record. For example, with a following dataset:
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Nullable type issue with ?: Conditional Operator
...nch of times already. The compiler is telling you that it doesn't know how convert null into a DateTime.
The solution is simple:
DateTime? foo;
foo = true ? (DateTime?)null : new DateTime(0);
Note that Nullable<DateTime> can be written DateTime? which will save you a bunch of typing.
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How do I pass JavaScript variables to PHP?
...larieids">SalarieID:</label>
<?php
$query = "SELECT * FROM salarie";
$result = mysql_query($query);
if ($result) :
?>
<select id="salarieids" name="salarieid">
<?php
while ($row = mysql_fetch_assoc($r...
Twitter Bootstrap Form File Element Upload Button
...hod, as well as examples for how to show the user which/how many files are selected:
http://www.abeautifulsite.net/whipping-file-inputs-into-shape-with-bootstrap-3/
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SQL standard to escape column names?
...
For MySQL, use back ticks `.
For instance:
SELECT `column`, `column2` FROM `table`
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Is there any simple way to find out unused strings in Android project?
...ed Resources....
Click Preview to see what the unused resources are and selectively remove them.
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