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Intercept page exit event
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Doesn't work any more in Chrome (deprecated): developers.google.com/web/updates/2016/04/…
– Micha Schwab
Aug 17 '17 at 18:35
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Why does Internet Explorer not send HTTP post body on Ajax call after failure?
...not seem to be a clear answer to this question, so I will provide my empirical data as a substitute and provide some ways to work around it. Maybe some MS insider will one day shed some light on this...
If HTTP Keep-Alive is disabled on the server, this issue goes away. In other words, your HTTP 1...
What's the difference between findAndModify and update in MongoDB?
...get-and-set style atomicity. But I didn't understand how it achieves this. Can somebody explain this to me?
5 Answers
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Argparse: Way to include default values in '--help'?
...o add information about the default value to.
The exact output for your scan-time option then becomes:
--scan-time [SCAN_TIME]
Wait SCAN-TIME seconds between status checks.
(default: 5)
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HTML5shiv vs Dean Edwards IE7-js vs Modernizr - which to choose?
...ch of classes in your HTML, depending on the available features, which you can use to change your layout according to what the browser supports. It also allows you to use the new HTML5 tags in IE, like html5shiv.
ie7.js (as well as ie8.js and ie9.js) uses Javascript to retro-fit some missing functio...
Using {} in a case statement. Why?
What is the point with using { and } in a case statement? Normally, no matter how many lines are there in a case statement, all of the lines are executed. Is this just a rule regarding older/newer compilers or there is something behind that?
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Regular expression matching a multiline block of text
...e position immediately preceding a newline.
Be aware, too, that a newline can consist of a linefeed (\n), a carriage-return (\r), or a carriage-return+linefeed (\r\n). If you aren't certain that your target text uses only linefeeds, you should use this more inclusive version of the regex:
re.comp...
Better way of getting time in milliseconds in javascript?
...tiate a new object every time I need to get this value? I am asking this because I am trying to make a simple game engine in JavaScript, and when calculating the "delta frame time", I have to create a new Date object every frame. While I am not too worried about the performance implications of this,...
Why do function pointer definitions work with any number of ampersands '&' or asterisks '*'?
...o an object. For pointers to ordinary functions, it is always redundant because of the implicit function-to-function-pointer conversion. In any case, this is why void (*p3_foo)() = &foo; works.
The unary *, when applied to a function pointer, yields the pointed-to function, just like it yield...
Heroku “psql: FATAL: remaining connection slots are reserved for non-replication superuser connectio
I'm developing an app on Heroku with a Postgresql backend. Periodically, I get this error message when trying to access the database, both from the CLI and from loading a page on the server:
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