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Node.js: what is ENOSPC error and how to solve?
...ine to /etc/sysctl.d/99-sysctl.conf:
fs.inotify.max_user_watches=524288
Then execute:
sysctl --system
This will also persist across reboots.
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What is tail call optimization?
...refer imperative style. Many languages (Java, Python) doesn't provide TCO, then you have to know that a functional call costs memory... and the imperative style is prefered.
– mcoolive
Nov 7 '16 at 12:41
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When should I use perror(“…”) and fprintf(stderr, “…”)?
...open(), and there was an error generated (i.e., it returned -1), you could then call perror immediately afterwards to see what the actual error was. Keep in mind that if you call other syscalls in the meantime, then the value in errno will be written over, and calling perror won't be of any use in ...
Convert command line arguments into an array in Bash
... @z0r If you don't put double quotes around those expansions then bash will re-wordsplit them, and possibly lose meaning.
– kojiro
Feb 20 '15 at 2:11
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php - get numeric index of associative array
...rue.
Setting array_search() to strict mode won't solve the problem because then array_search("0", array_keys($a)) would return false even if an element with index 0 exists.
So my solution just converts all indexes from array_keys() to strings and then compares them correctly:
echo array_search("c...
Comparing two collections for equality irrespective of the order of items in them
...nge (and specifically thier hashcode changes) while this method is running then the results are unexpected, but that just means this method is not thread safe in this context.
– Ohad Schneider
Sep 2 '13 at 9:04
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PDO Prepared Inserts multiple rows in single query
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Used this for a while then noticed that values with single quotes in them aren't escaped properly. Using double quotes on implosion works like a charm for me: $a[] = '("' . implode(",", $question_marks) . '", NOW())';
– qwert...
Only detect click event on pseudo-element
...ou saying that if I the click event on the something like .box:before, the then .box can not detect any click?
– most venerable sir
Jul 10 '17 at 0:21
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Create web service proxy in Visual Studio from a WSDL file
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Try using WSDL.exe and then including the generated file (.cs) into your project.
Fire up the Visual Studio Command prompt (under visual studio/tools in the start menu) then type
>wsdl.exe [path To Your WSDL File]
That'll spit out a file, wh...
How to override the properties of a CSS class using another CSS class
...pproach has been gaining adherents. Try both on a medium sized project and then decide for yourself which is superior.
– Mattia
Dec 4 '19 at 17:27
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