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Difference between “module.exports” and “exports” in the CommonJs Module System
...ns to be set to module.exports.
At the end of your file, node.js will basically 'return' module.exports to the require function. A simplified way to view a JS file in Node could be this:
var module = { exports: {} };
var exports = module.exports;
// your code
return module.exports;
If you set a...
What is an index in SQL?
...
"The index can also be a UNIQUE index..." Just to confirm with you, does that means index can al be Non-UNIQUE? I always thought its UNIQUE. I'm quite new to SQL, pardon me
– Daniel Kurniadi
May 16 at 5:01
...
What are some uses of decltype(auto)?
...code
For non-generic code, like the initial example you gave, you can manually select to get a reference as a return type:
auto const& Example(int const& i)
{
return i;
}
but in generic code you want to be able to perfectly forward a return type without knowing whether you are dea...
Java: PrintStream to String?
...that object. How can I capture this function's output in a String? Specifically, I want to use it as in a toString method.
...
Difference between . and : in Lua
... brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 4...
Deleting all pending tasks in celery / rabbitmq
...lytics
$ sudo rabbitmqctl list_queues -p celery name messages consumers # Confirm messages is 0
$ sudo /etc/init.d/celeryd start
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Android: how to make keyboard enter button say “Search” and handle its click?
... brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 4...
Class.forName() vs ClassLoader.loadClass() - which to use for dynamic loading? [duplicate]
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I found this out the hard way, and can assuredly confirm that this is the case using Catalina. I had called getClassLoader().loadClass("..."); on a Class type to attempt to load a Torque peer class in order to run a static initializer block which maps the peer to a database...
Cleaning `Inf` values from an R dataframe
...orks, but changes all negative values in the dataset to positive! You can confirm with this:
data(iris)
#The last line here is bad - it converts all negative values to positive
iris %>%
mutate_if(is.numeric, ~scale(.)) %>%
mutate(infinities = Sepal.Length / 0) %>%
mutate_if(is.nume...
Configure apache to listen on port other than 80
...b;
Kill it with: taskkill /pid NUMBER /f (/f forces it);
Recheck resmon to confirm that the port is free now and repeat step 6.
This ensures that Apache's service was started properly, the configuration on virtual hosts config file as sarul mentioned (e.g.: C:\wamp\bin\apache\apache2.4.9\conf\extr...