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MySQL indexes - what are the best practices?
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You should definitely spend some time reading up on indexing, there's a lot written about it, and it's important to understand what's going on.
Broadly speaking, an index imposes an ordering on the rows of a table.
For simplicity's sake, imagine a table is just...
How to handle AccessViolationException
... call (doc.OCR), and if I step through, it continues to the next line instead of entering the catch block. Additionally, if I run this outside of the visual studio my application crashes. How can I handle this exception that is thrown within the COM object?
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How to copy an object in Objective-C
...need to deep copy a custom object that has objects of its own. I've been reading around and am a bit confused as to how to inherit NSCopying and how to use NSCopyObject.
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How do I install Python OpenCV through Conda?
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Quanlong
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answered Dec 25 '14 at 19:55
jonnycowboyjonnycowboy
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What is the difference between == and equals() in Java?
... Full Of EelsHovercraft Full Of Eels
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What are JavaScript's builtin strings?
...to my wife on February 14 :) Having only Chrome installed on the laptop I had no options to check how it works in Firefox and IE. Moreover, I haven't really expected that toString() representation of build-in methods might look differently in other browsers.
Now, moving to the real problem, let's pr...
How can I save an image to the camera roll?
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smileyborg
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answered Jun 21 '12 at 3:19
pasawayapasawaya
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How can I see all the issues I'm watching on Github?
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lasec0203
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answered Apr 21 '19 at 10:30
apaatsioapaatsio
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What is the difference between __dirname and ./ in node.js?
...urrent directory, is there any reason to use the __dirname variable instead of just a regular ./ ? I've been using ./ thus far in my code and just discovered the existence of __dirname , and essentially want to know whether it would be smart to convert my ./'s to that, and if so, why that would ...
Is there a way to detect if a browser window is not currently active?
... us to more accurately detect when a page is hidden to the user.
document.addEventListener("visibilitychange", onchange);
Current browser support:
Chrome 13+
Internet Explorer 10+
Firefox 10+
Opera 12.10+ [read notes]
The following code falls back to the less reliable blur/focus method in inc...