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Does Python optimize tail recursion?

...ons. The clean way: modifying the Y combinator The Y combinator is well known; it allows to use lambda functions in a recursive manner, but it doesn't allow by itself to embed recursive calls in a loop. Lambda calculus alone can't do such a thing. A slight change in the Y combinator however can pr...
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Best architectural approaches for building iOS networking applications (REST clients)

...esting in the problems of building approaches, which combine several well-known patterns and idioms. I think a lot of Fowler's enterprise patterns can be successfully applied to the mobile applications. Here is a list of the most interesting ones, which we can apply for creating an iOS application a...
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How to remove duplicate values from an array in PHP

...e: $array = array(1, 2, 2, 3); $array = array_unique($array); // Array is now (1, 2, 3) share | improve this answer | follow | ...
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Why is an int in OCaml only 31 bits?

Haven't seen this "feature" anywhere else. I know that the 32nd bit is used for garbage collection. But why is it that way only for ints and not for the other basic types? ...
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How to modify a global variable within a function in bash?

... tell you, that it is impossible to fix. This is wrong, but it is a long known difficult to solve problem. There are several ways on how to solve it best, this depends on your needs. Here is a step by step guide on how to do it. Passing back variables into the parental shell There is a way to p...
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Add a prefix to all Flask routes

I have a prefix that I want to add to every route. Right now I add a constant to the route at every definition. Is there a way to do this automatically? ...
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Perform debounce in React.js

...ery debouncedMethod call, so the newly created debounce function does not know anything about former calls! You must reuse the same debounced function over time or the debouncing will not happen. NOT a good idea: var SearchBox = React.createClass({ debouncedMethod: debounce(function () {...},1...
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Break promise chain and call a function based on the step in the chain where it is broken (rejected)

...e invoked if stepOne rejects (it's the first function in the chain, so we know that if the chain is rejected at this point, it can only be because of that function's promise). The important change is that the error handlers for the other functions are not part of the main promise chain. Instead, ea...
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Cross-browser testing: All major browsers on ONE machine

...f using Sandboxie to run IE7 and IE8 in the same VM, thanks for the guide! Now I don't have to run three separate VMs just to test in IE6-IE8. – Phil Jan 8 '13 at 3:56 ...
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How can I debug git/git-shell related problems?

... This would be most useful as I have to resolve a key problem now, but it doesn't work for me with git 1.8.3.1 and OpenSSH_6.6.1p1, OpenSSL 1.0.1e-fips 11 Feb 2013 on CentOS Linux release 7.2.1511 (Core). :( – Greg Dubicki Jun 6 '16 at 12:37 ...