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“Git fatal: ref HEAD is not a symbolic ref” while using maven release plugin
...nkins - Jenkins Wiki), leaving the field empty can work for this, too: "If selected, and its value is an empty string or **, then the branch name is computed from the remote branch without the origin."
– evgeny9
Aug 14 '19 at 12:39
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asynchronous vs non-blocking
...ing socket would have blocked. You have to use a separate function such as select or poll to find out when is a good time to retry.
But asynchronous sockets (as supported by Windows sockets), or the asynchronous IO pattern used in .NET, are more convenient. You call a method to start an operation, ...
Undefined symbols for architecture armv7
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Another way to fix this is select file that is said to be missing. and open the "Utilities" slide out bar. (Thats the far right one) And choose the "File Inspector". Then make sure there is a check in the project under "Target Membership". I'm using X...
File upload progress bar with jQuery
.../blueimp/jQuery-File-Upload.
They have a very nice api with multiple file selection, drag&drop support, progress bar, validation and preview images, cross-domain support, chunked and resumable file uploads. And they have sample scripts for multiple server languages(node, php, python and go).
D...
Copy values from one column to another in the same table
... set str = '';
WHILE x < 5 DO
set str = (select source_col from emp where id=x);
update emp set target_col =str where id=x;
SET x = x + 1;
END WHILE;
END$$
DELIMITER ;
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How to check if a particular service is running on Ubuntu
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For Ubuntu (checked with 12.04)
You can get list of all services and select by color one of them with 'grep':
sudo service --status-all | grep postgres
Or you may use another way if you know correct name of service:
sudo service postgresql status
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How to get the list of properties of a class?
... i suppose this is much better pObject.GetType().GetProperties().Select(p=>p.Name)
– Disappointed
Jun 9 '16 at 16:18
add a comment
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Accessing outside variable using anonymous function as params
... same no matter what function is executing.
Code:
$result = '';
fetch("SELECT title FROM tbl", function($r) use (&$result) {
$result .= $r['title'];
});
But beware (taken from one of comments in previous link):
use() parameters are early binding - they use the variable's value at
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Measure execution time for a Java method [duplicate]
...uld be to run JvisualVM .Just run your method or class and start jvisualVM.Select your java process(if run locally it will list the java process).Go to sampler, monitor CPU, take a snapshot after metod finishes. and you can get time taken by each method in call tree. its buddled in jvm/jdk.
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jQuery UI datepicker change event not caught by KnockoutJS
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$('.datepicker').datepicker({ onSelect: function(dateText) { $("#date_in").trigger("change"); } });
– elsadek
Jul 20 '14 at 5:40
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