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How to write a simple database engine [closed]

... interested in learning how a database engine works (i.e. the internals of it). I know most of the basic data structures taught in CS (trees, hash tables, lists, etc.) as well as a pretty good understanding of compiler theory (and have implemented a very simple interpreter) but I don't understand h...
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When to use ' (or quote) in Lisp?

After making it through the major parts of an introductory Lisp book, I still couldn't understand what the special operator (quote) (or equivalent ' ) function does, yet this has been all over Lisp code that I've seen. ...
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Are PHP short tags acceptable to use?

... They're not recommended because it's a PITA if you ever have to move your code to a server where it's not supported (and you can't enable it). As you say, lots of shared hosts do support shorttags but "lots" isn't all of them. If you want to share your scri...
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Convert ArrayList to String[] array [duplicate]

... working in the android environment and have tried the following code, but it doesn't seem to be working. 6 Answers ...
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Custom events in jQuery?

...building a tiny javascript library/plugin to handle some preview functionality. 6 Answers ...
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What's the difference between window.location= and window.location.replace()?

... window.location adds an item to your history in that you can (or should be able to) click "Back" and go back to the current page. window.location.replace replaces the current history item so you can't go back to it. See window.location: assign...
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Which is faster : if (bool) or if(int)?

The above topic made me do some experiments with bool and int in if condition. So just out of curiosity I wrote this program: ...
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How can I make a weak protocol reference in 'pure' Swift (without @objc)

...follow | edited Dec 11 '19 at 9:13 Michal Šrůtek 33333 silver badges1111 bronze badges ...
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What is Rack middleware?

...n Rack middleware is more than "a way to filter a request and response" - it's an implementation of the pipeline design pattern for web servers using Rack. It very cleanly separates out the different stages of processing a request - separation of concerns being a key goal of all well designed sof...
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Is there a point to minifying PHP?

...ering if there is any point. PHP is an interpreted language so will run a little slower than a compiled language. My question is: would clients see a visible speed improvement in page loads and such if I were to minify my PHP? ...