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How to write to a JSON file in the correct format
...reating a hash in Ruby and want to write it to a JSON file, in the correct format.
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Is Python strongly typed?
...ly typed language, where types are entirely disjoint and only a controlled form of overloading is possible via type classes.
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Turn off Chrome/Safari spell checking by HTML/css
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for all elements of a form it is possible and so:
<form spellcheck="false" .. />
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What is the difference between IQueryable and IEnumerable?
...om query logic it receives, e.g., a predicate or value selector, is in the form of an expression tree instead of a delegate to a method.
IEnumerable<T> is great for working with sequences that are iterated in-memory, but
IQueryable<T> allows for out-of memory things like a remote data s...
How can I view the source code for a function?
...nv") for currently available ones.
The output already offers a lot of information. standardGeneric is an indicator of an S4 function. The method to see defined S4 methods is offered helpfully:
> showMethods(chol2inv)
Function: chol2inv (package base)
x="ANY"
x="CHMfactor"
x="denseMatrix"
x="d...
Local file access with JavaScript
... restrictions. First, scripts run in a
sandbox in which they can only perform
web-related actions, not
general-purpose programming tasks like
creating files.
2016 UPDATE: Accessing the filesystem directly is possible via the Filesystem API, which is only supported by Chrome and Opera and m...
How does Java handle integer underflows and overflows and how would you check for it?
...^ (left - right))) < 0;
}
}
(you can substitute int by long to perform the same checks for long)
If you think that this may occur more than often, then consider using a datatype or object which can store larger values, e.g. long or maybe java.math.BigInteger. The last one doesn't overflow,...
(![]+[])[+[]]… Explain why this works
..., they are the property accessor, and they receive an expression, which is formed by the Unary Plus Operator applied to an empty array again.
What the Unary Plus Operator does is type conversion, to Number, for example:
typeof +"20"; // "number"
One more time, this is applied to an empty Array, ...
Web workers without a separate Javascript file?
...This means that code cannot be moved from one context to another in object form, as they would then be able to reference objects via closures belonging to the other context.
This is especially crucial as ECMAScript is designed to be a single threaded language, and since web workers operate in separa...
What is the aspnet_client folder for under the IIS structure?
...oring resources (eg. JavaScript, images) for:
JavaScript for ASP.NET Web Forms controls when using client-side validation (mainly to manhandle older browsers like IE5, it seems)
ASP.NET 2.0 (until at framework 4.0) for 'Global Themes' (global to all sites on a server, that is)
some versions of Cry...