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Why is $$ returning the same id as the parent process?
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Shouldn't the second bullet be kill -0 $! if we're talking about background processes? PID isn't set to anything by default.
– Isaac Freeman
Sep 12 '19 at 22:27
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How can I play sound in Java?
...ary. 2) For a good example of using Clip, see the JavaSound info. page. 3) If a method requires an URL (or File) give it a dang URL (or File) rather than accept a String that represents one. (Just a personal 'bee in my bonnet'.) 4) e.printStackTrace(); provides more information with less typing tha...
jQuery - checkbox enable/disable
I have a bunch of checkboxes like this. If the "Check Me" checkbox is checked, all the other 3 checkboxes should be enabled, else they should be disabled. How can I do this using jQuery?
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Is there a performance difference between CTE , Sub-Query, Temporary Table or Table Variable?
In this excellent SO question , differences between CTE and sub-queries were discussed.
4 Answers
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Get path from open file in Python
If I have an opened file, is there an os call to get the complete path as a string?
4 Answers
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What should every developer know about databases? [closed]
Whether we like it or not, many if not most of us developers either regularly work with databases or may have to work with one someday. And considering the amount of misuse and abuse in the wild, and the volume of database-related questions that come up every day, it's fair to say that there are ce...
How to create a file with a given size in Linux?
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dd if=/dev/zero of=upload_test bs=file_size count=1
Where file_size is the size of your test file in bytes
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Does every Javascript function have to return a value?
...he short answer is no.
The real answer is yes: the JS engine has to be notified that some function has finished its business, which is done by the function returning something. This is also why, instead of "finished", a function is said to "have returned".
A function that lacks an explicit return s...
Unable to evaluate expression because the code is optimized or a native frame is on top of the call
...o Response.End. For example: Response.Redirect
("nextpage.aspx", false); If you use this workaround, the code
that follows Response.Redirect is executed.
For Server.Transfer, use the Server.Execute method instead.
Symptoms
If you use the Response.End, Response.Redirect, or Server.Tran...
How to add additional fields to form before submit?
... Information"}
]);
$.post('/change-user-details', form, function(d) {
if (d.error) {
alert("There was a problem updating your user details")
}
});
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