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What is a elegant way in Ruby to tell if a variable is a Hash or an Array?
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Be careful, this could really screw you if someone ends up passing you an instance of ActiveSupport::HashWithIndifferentAccess. Which responds like a hash, but is not in fact a Hash. :(
– unflores
Mar 6 '14 at...
pandas dataframe columns scaling with sklearn
...and I'd like to apply sklearn's min_max_scaler to some of the columns. Ideally, I'd like to do these transformations in place, but haven't figured out a way to do that yet. I've written the following code that works:
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How do I suspend painting for a control and its children?
... and reflector usage I came across the WM_SETREDRAW win32 message. This really stops controls drawing whilst you update them and can be applied, IIRC to the parent/containing panel.
This is a very very simple class demonstrating how to use this message:
class DrawingControl
{
[DllImport("user...
Detect whether there is an Internet connection available on Android [duplicate]
...er downtime, low signal, captive portals, content filters and the like can all prevent your app from reaching a server. For instance you can't tell for sure if your app can reach Twitter until you receive a valid response from the Twitter service.
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How to split data into training/testing sets using sample function
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@VedaadShakib when you use "-" it omit all the index in train_ind from your data. Take a look at adv-r.had.co.nz/Subsetting.html . Hope it helps
– dickoa
Aug 1 '16 at 22:05
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Relation between CommonJS, AMD and RequireJS?
...hingElse = function() { return someModule.doSomething() + "bar"; };
Basically, CommonJS specifies that you need to have a require() function to fetch dependencies, an exports variable to export module contents and a module identifier (which describes the location of the module in question in relat...
Yes or No confirm box using jQuery
...false;
}
});
</script>
These codes works for me, but I'm not really sure if this is proper. What do you think?
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How to pass arguments to addEventListener listener function?
...you have more code that operates on the same someVar variable next to the call to addEventListener)
var someVar;
someVar = some_other_function();
alert(someVar);
someObj.addEventListener("click", function(){
some_function(someVar);
}, false);
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How to give ASP.NET access to a private key in a certificate in the certificate store?
...Local Computer" account. Best to use Certificates MMC. Make sure to check "Allow private key to be exported"
Based upon which, IIS 7.5 Application Pool's identity use one of the following.
IIS 7.5 Website is running under ApplicationPoolIdentity. Open MMC => Add Certificates (Local computer) sn...
How do I speed up the gwt compiler?
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Let's start with the uncomfortable truth: GWT compiler performance is really lousy. You can use some hacks here and there, but you're not going to get significantly better performance.
A nice performance hack you can do is to compile for only specific browsers, by inserting the following line in...