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What optimizations can GHC be expected to perform reliably?
...dIndefinitelyOnSTM_closure' '-u' 'base_ControlziExceptionziBase_nestedAtomically_closure' '-u' 'base_GHCziWeak_runFinalizzerBatch_closure' '-u' 'base_GHCziTopHandler_flushStdHandles_closure' '-u' 'base_GHCziTopHandler_runIO_closure' '-u' 'base_GHCziTopHandler_runNonIO_closure' '-u' 'base_GHCziConczi...
Pass props to parent component in React.js
...hild in the parent, the child could pass all the dom nodes directly in the callback.
The component has an interface (props) and the parent should not assume anything about the inner working of the child, including its inner DOM structure or which DOM nodes it declares refs for. A parent using a ref...
Mean per group in a data.frame [duplicate]
...ingsAsFactors = FALSE, na.strings = 'NA')
by.month <- as.data.frame(do.call("rbind", by(my.data, my.data$Month, FUN = function(x) colMeans(x[,3:4]))))
colnames(by.month) <- c('Rate1.mean', 'Rate2.mean')
by.month <- cbind(Month = rownames(by.month), by.month)
my.data <- merge(my.data, b...
How do you use the Immediate Window in Visual Studio?
...its ability to evaluate the return value of a method particularly if it is called by your client code but it is not part of a variable assignment. In Debug mode, as mentioned, you can interact with variables and execute expressions in memory which plays an important role in being able to do this.
F...
Is Java Regex Thread Safe?
...141681.html#A14 : "The Java 2 SDK, Standard Edition itself contains a file called src.zip that contains the source code for the public classes in the java package") so one can take a quick peek oneself.
– David Tonhofer
Nov 18 '13 at 15:40
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Backbone.js: get current route
...e hashchange events or pushState, match the appropriate route, and trigger callbacks. You shouldn't ever have to create one of these yourself — you should use the reference to Backbone.history that will be created for you automatically if you make use of Routers with routes.
[...]"
If you need th...
Are unused CSS images downloaded?
...
Well, that's because it's referenced. So I'm not sure calling it "unused" is really valid..
– NotMe
Jun 14 '10 at 22:55
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When do we have to use copy constructors?
...will be copied), so the first to be destroyed copy sharing the buffer will call delete[] successfully and the second will run into undefined behavior. You need deep copying copy constructor (and assignment operator as well).
Class::Class( const Class& another )
{
stored = new char[strlen(an...
No visible cause for “Unexpected token ILLEGAL”
...n code is parsed by the JavaScript interpreter, it gets broken into pieces called "tokens". When a token cannot be classified into one of the four basic token types, it gets labelled "ILLEGAL" on most implementations, and this error is thrown.
The same error is raised if, for example, you try to ru...
Role-based access control (RBAC) vs. Claims-based access control (CBAC) in ASP.NET MVC
...is how Roles factor into claims - aren't in claims-based systems roles basically a grouping of claims so that you can mass-assign stuff? eg you can say Bob is in role Marketing and everyone in Marketing has claims CanCreateCustomer, CanViewAdCampaigns
– George Mauer
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