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boost::flat_map and its performance compared to map and unordered_map
...st are careful to take the same thousand of times for every operation, and then consider that comparable.
The truth is, in real world it makes little sense, because your cache will not be warm, and your operation will likely be called just once. Therefore you need to benchmark using RDTSC, and time...
JavaScript Regular Expression Email Validation [duplicate]
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If you define your regular expression as a string then all backslashes need to be escaped, so instead of '\w' you should have '\\w'.
Alternatively, define it as a regular expression:
var pattern = /^\w+@[a-zA-Z_]+?\.[a-zA-Z]{2,3}$/;
BTW, please don't validate email ad...
jQuery using append with effects
...div as
<div id="new_div" style="display: none;"> ... </div>
Then you can chain effects to your append (demo):
$('#new_div').appendTo('#original_div').show('slow');
Or (demo):
var $new = $('#new_div');
$('#original_div').append($new);
$new.show('slow');
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Convert data.frame column to a vector?
...frame and data.table, and you want to extract a column from it as a vector then
data[["column_name"]]
is best.
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Delete branches in Bitbucket
...under Commits on the site. There you'll find an ellipsis icon. Click that, then choose Delete branch. Just be sure you want to drop all the changes there!
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Deny access to one specific folder in .htaccess
...ders inside that folder, if you want to block everything inside the folder then just change the regex pattern to ^/folder/.*$ .
Another option is mod-rewrite
If url-rewrting-module is enabled you can use something like the following in root/.htaccss :
RewriteEngine on
RewriteRule ^folder/?$ - [F,...
jQuery get specific option tag text
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If there is only one select tag in on the page then you can specify select inside of id 'list'
jQuery("select option[value=2]").text();
To get selected text
jQuery("select option:selected").text();
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How do I free my port 80 on localhost Windows?
... want to continue?" Pressed y
It stopped a number of services actually.
Then wrote localhost and wallah, Apache is up and running on port 80.
Hope this helps
Important: Skype uses port 80 by default, you can change this in skype options > advanced > connection - and uncheck "use port 80"
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Where IN clause in LINQ [duplicate]
... project if you only need to do this in say a single controller (aka once) then there's an extension method is not required. This was more for people who are new to c#/linq :)
– JARRRRG
Jan 27 '16 at 12:07
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jQuery Scroll to bottom of page/iframe
...dited the accepted answer to add a pointer down to this answer. If it is, then someone can revert it.
– xaxxon
May 8 '15 at 2:55
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