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How to sum a variable by group
... Is there anyway of maintaining an ID column? Say the categories are ordered and the ID column is 1:nrow(df), is it possible to keep the starting position of each category after aggregating? So the ID column would end up as, for example, 1, 3, 4, 7 after collapsing with aggregate. In my case ...
Total width of element (including padding and border) in jQuery
...the subject, how can one get the total width of an element, including its border and padding, using jQuery? I've got the jQuery dimensions plugin, and running .width() on my 760px-wide , 10px padding DIV returns 760 .
...
How to extract numbers from a string and get an array of ints?
...mites a set of characters to be single matched, i.e., only one time in any order
^ Special identifier used in the beginning of the set, used to indicate to match all characters not present in the delimited set, instead of all characters present in the set.
+ Between one and unlimited times, as many ...
Open multiple Eclipse workspaces on the Mac
... you want.
Warning
You might have to change the Tomcat server ports in order to run your project in different/multiple Tomcat instances, see Tomcat Server Error - Port 8080 already in use
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Xcode 5.1 - No architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=x86_64, VALID_ARCHS=i
... Wow. I have to actually plug in the device I want to build for in order to get the proper target code compiled? I just puked a bit in my mouth. Your post solved this issue for me, thanks.
– user562566
Oct 13 '15 at 18:25
...
json_encode is returning NULL?
...ult = mysql_query('SELECT `id`, `name`, `description`, `icon` FROM `staff` ORDER BY `id` DESC LIMIT 20') or die(mysql_error());
$rows = array();
while($row = mysql_fetch_assoc($result)){
$rows[] = $row;
}
echo json_encode($rows);
?>
When iterating over mysql_num_rows you should use < n...
Disabling implicit animations in -[CALayer setNeedsDisplayInRect:]
...ppropriate key. For example, I use
NSDictionary *newActions = @{
@"onOrderIn": [NSNull null],
@"onOrderOut": [NSNull null],
@"sublayers": [NSNull null],
@"contents": [NSNull null],
@"bounds": [NSNull null]
};
layer.actions = newActions;
to disable fade in / out animations on...
ASP.NET Bundles how to disable minification
...
Actually I think he has it nailed - in order to just turn off minification, use a Bundle as per Hao, otherwise use ScriptBundle which bundles and minifies, no?
– Adam Tuliper - MSFT
Sep 12 '12 at 5:17
...
'const int' vs. 'int const' as function parameters in C++ and C
...e same, although a little more explanation of the pointer case might be in order.
"const int* p" is a pointer to an int that does not allow the int to be changed through that pointer. "int* const p" is a pointer to an int that cannot be changed to point to another int.
See https://isocpp.org/wiki...
XPath - Selecting elements that equal a value
.... defines the string value of an element as the concatenation (in document order) of all of its text-node descendents.
This explains the "strange results".
"Better" results can be obtained using the expressions below:
//*[text() = 'qwerty']
The above selects every element in the document that ...