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Loop backwards using indices in Python?

...y it's 10 MB, then creating the reverse indices upfront would take seconds and use up over 50 MB of memory. Using a reversed generator would take milliseconds and only use up a few bytes of memory. – Blixt Sep 29 '19 at 6:23 ...
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Why can't an anonymous method be assigned to var?

...to be the default instead of Predicate or Action or any other possibility? And, for lambdas, why is it obvious that the intention is to choose the delegate form, rather than the expression tree form? But we could say that Func is special, and that the inferred type of a lambda or anonymous method i...
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typeof !== “undefined” vs. != null

...n the two. In many cases, == can be better, because it tests for both null and undefined. – seanmonstar Jun 19 '12 at 16:58 10 ...
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When to use a key/value store such as Redis instead/along side of a SQL database?

...real-time data, such as session store, state database, statistics, caching and its advanced data structures offers versatility to many other scenarios. Redis, however, isn't NoSQL replacement for classic relational databases since it doesn't support many standard features of RDBMS world such as que...
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Does a favicon have to be 32x32 or 16x16?

I'd like to use a single image as both a regular favicon and iPhone/iPad friendly favicon. 9 Answers ...
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Difference between MVC 5 Project and Web Api Project

I am new to ASP.NET MVC and Web API and trying to get the basics. AFAIK, we have project templates in VS 2013, named as MVC , Web API and Both of them together . ...
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When would you use a WeakHashMap or a WeakReference?

...mplementation of so I'm trying to figure out what the use case for them is and how the implementation would work. When have you needed to use a WeakHashMap or WeakReference and how was it used? ...
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JMS Topic vs Queues

I was wondering what is the difference between a JMS Queue and JMS Topic. 9 Answers 9 ...
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What blocks Ruby, Python to get Javascript V8 speed? [closed]

...s Ruby, Python to get Javascript V8 speed? Nothing. Well, okay: money. (And time, people, resources, but if you have money, you can buy those.) V8 has a team of brilliant, highly-specialized, highly-experienced (and thus highly-paid) engineers working on it, that have decades of experience (I'm ...
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Android Writing Logs to text File

I'm Trying to Write Logs to Custom Log.txt File on Android File using this code of Mine but then this method creates file but contains nothing. Basically I want to read previous contents of the file and then append my data with the existing content. ...