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How to set JAVA_HOME in Linux for all users
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edited May 23 '18 at 19:41
Robin Green
28.4k1313 gold badges8787 silver badges168168 bronze badges
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HTML button to NOT submit form
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I think this is the most annoying little peculiarity of HTML... That button needs to be of type "button" in order to not submit.
<button type="button">My Button</button>
Update 5-Feb-2019: As per the HTML Living Standard (and also HTML 5 speci...
Check if a number is int or float
Here's how I did it:
17 Answers
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How to combine two or more querysets in a Django view?
I am trying to build the search for a Django site I am building, and in that search, I am searching in 3 different models. And to get pagination on the search result list, I would like to use a generic object_list view to display the results. But to do that, I have to merge 3 querysets into one.
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Is there a bash command which counts files?
...* | wc -l
ls -1q will give you one line per file, even if they contain whitespace or special characters such as newlines.
The output is piped to wc -l, which counts the number of lines.
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How many threads is too many?
I am writing a server, and I send each action of into a separate thread when the request is received. I do this because almost every request makes a database query. I am using a threadpool library to cut down on construction/destruction of threads.
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Tricky Google interview question
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edited Aug 19 '14 at 18:58
Will Ness
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Common use-cases for pickle in Python
...that I have come across:
1) saving a program's state data to disk so that it can carry on where it left off when restarted (persistence)
2) sending python data over a TCP connection in a multi-core or distributed system (marshalling)
3) storing python objects in a database
4) converting an arbit...
Split long commands in multiple lines through Windows batch file
How can I split long commands over multiple lines in a batch file?
5 Answers
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bool operator ++ and --
Today while writing some Visual C++ code I have come across something which has surprised me. It seems C++ supports ++ (increment) for bool, but not -- (decrement). It this just a random decision, or there is some reason behind this?
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