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MySQL select with CONCAT condition
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Django ModelForm: What is save(commit=False) used for?
...want to use one of the specialized model saving options.
commit is True by default.
It seems that save( commit=False ) does create a model instance, which it returns to you. Which is neat for some post processing before actually saving it!
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How do I use WebStorm for Chrome Extension Development?
...ity stubs is selected
Select chrome from the list (you can find it quickly by just typing chrome)
Click Download and Install
Click OK to close the Settings dialog.
Steps 2-6 illustrated below:
In Subsequent Projects
In any subsequent project, you just:
Open the Settings dialog again (Fil...
How can I break an outer loop with PHP?
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Better way of getting time in milliseconds in javascript?
... I am having some problems with the reliability of the exact time returned by this object.
5 Answers
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Objective-C implicit conversion loses integer precision 'NSUInteger' (aka 'unsigned long') to 'int'
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@ShaunBudhram By the looks of it nope. I haven't seen any difference. It will only make a difference in apps that use the CPU heavily - games for example would see a benefit compiling for 64 bit.
– Robert J. Clegg
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Why do you need to create a cursor when querying a sqlite database?
...ifies the row. The cursor must be opened and already positioned
on a row by means of FETCH statement.
If you check the docs on Python sqlite module, you can see that a python module cursor is needed even for a CREATE TABLE statement, so it's used for cases where a mere connection object should s...
Compare if BigDecimal is greater than zero
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BigDecimal.compareTo() starts by comparing signums as an optimisation. So it's probably best to call compareTo(), as it's more intention-revealing and only costs the price of an extra method call (which I suspect would get inlined anyway).
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What is a simple/minimal browserconfig.xml for a web site
...e the 404 Not Found messages as IE looks for browserconfig.xml scrolling by in my log files.
6 Answers
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Does async(launch::async) in C++11 make thread pools obsolete for avoiding expensive thread creation
.... And even the worker thread with the inter-thread queue slows things down by a factor of 20 or so on Fedora 25 in a VM, and by about 8 on native OS X.
I created a Bitbucket project holding the code I used for the performance test. It can be found here: https://bitbucket.org/omnifarious/launch_thre...