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How do I run Redis on Windows?

...an use to interact with any Redis instance. The RGL repository has historically been listed as an alternative Windows port for Redis, but this repository has not been maintained for some time and implements an older version of Redis than the Microsoft port. It should be noted that the official port ...
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Explain the use of a bit vector for determining if all characters are unique

...ge for bits. Every bit in integer value can be treated as a flag, so eventually int is an array of bits (flag). Each bit in your code states whether the character with bit's index was found in string or not. You could use bit vector for the same reason instead of int. There are two differences betwe...
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What exactly is Hot Module Replacement in Webpack?

...g modules in a running application (and adding/removing modules). You basically can update changed modules without a full page reload. Documentation Prerequirements: Using Plugins: https://webpack.js.org/concepts/plugins/ Code Splitting: https://webpack.js.org/guides/code-splitting/ webpack-dev-...
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Visual Studio 2010 annoyingly opens documents in wrong MDI pane

...ng the window layout and see if that fixes it. First, Window -> Close All Documents Then, Window -> Reset Window Layout Exit VS to be sure, then go back in. share | improve this answer ...
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Why are joins bad when considering scalability?

... Scalability is all about pre-computing (caching), spreading out, or paring down the repeated work to the bare essentials, in order to minimize resource use per work unit. To scale well, you don't do anything you don't need to in volume, and...
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How do you parse and process HTML/XML in PHP?

... one of the native XML extensions since they come bundled with PHP, are usually faster than all the 3rd party libs and give me all the control I need over the markup. DOM The DOM extension allows you to operate on XML documents through the DOM API with PHP 5. It is an implementation of the W3C'...
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Using Regex to generate Strings rather than match them

...elps me to generate loads of data for performance testing. It would be really cool to be able to specify a regex for Strings so that my generator spits out things which match this. Is there something out there already baked which I can use to do this? Or is there a library which gets me most of...
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How do I get currency exchange rates via an API such as Google Finance? [closed]

... Thanks for all your answers. Free currencyconverterapi: Rates updated every 30 min API key is now required for the free server. A sample conversion URL is: http://free.currencyconverterapi.com/api/v5/convert?q=EUR_USD&compact=y F...
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Is there an MD5 Fixed Point where md5(x) == x?

...ng. Assuming that the MD5 sum of any string is uniformly distributed over all possible sums, then the probability that any given 128-bit string is a fixed point is 1/2128. Thus, the probability that no 128-bit string is a fixed point is (1 − 1/2128)2128, so the probability that there is a fixed ...
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Capistrano - clean up old releases

Usually when using capistrano, I will go and manually delete old releases from a deployed application. I understand that you can run cap deploy:cleanup but that still leaves 5 releases. Is this it's intended purpose? Is there another way to cleanup old releases to just 1 previous deploy? ...