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What is the difference between Raising Exceptions vs Throwing Exceptions in Ruby?

Ruby has two different exceptions mechanisms: Throw/Catch and Raise/Rescue. 3 Answers ...
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Does name length impact performance in Redis?

...ET (10 keys)",cmd,len); free(cmd); - len = redisFormatCommand(&cmd,"SET foo:rand:000000000000 %s",data); + len = redisFormatCommand(&cmd,"SET foo %s",data); benchmark("SET",cmd,len); free(cmd); - len = redisFormatCommand(&cmd,"GET foo:ran...
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Slow Requests on Local Flask Server

Just starting to play around with Flask on a local server and I'm noticing the request/response times are way slower than I feel they should be. ...
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Find the version of an installed npm package

... On mac and linux it's nice to add " | grep module_name", to filter the desired module version. Especially when running globally with -g. For example: "npm list -g | grep express" to get the installed express version. ...
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Is calculating an MD5 hash less CPU intensive than SHA family functions?

Is calculating an MD5 hash less CPU intensive than SHA-1 or SHA-2 on "standard" laptop x86 hardware? I'm interested in general information, not specific to a certain chip. ...
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How to handle exceptions in a list comprehensions?

...amp;c in case of exceptions), so it's impossible, literally speaking, to "handle exceptions in a list comprehension" because a list comprehension is an expression containing other expression, nothing more (i.e., no statements, and only statements can catch/ignore/handle exceptions). Function calls ...
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Cosmic Rays: what is the probability they will affect a program?

Once again I was in a design review, and encountered the claim that the probability of a particular scenario was "less than the risk of cosmic rays" affecting the program, and it occurred to me that I didn't have the faintest idea what that probability is. ...
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Is there an R function for finding the index of an element in a vector?

In R, I have an element x and a vector v . I want to find the first index of an element in v that is equal to x . I know that one way to do this is: which(x == v)[[1]] , but that seems excessively inefficient. Is there a more direct way to do it? ...
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stopPropagation vs. stopImmediatePropagation

What's the difference between event.stopPropagation() and event.stopImmediatePropagation() ? 9 Answers ...
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What is the difference between “Form Controls” and “ActiveX Control” in Excel 2010?

...two kind of controls that can be inserted into a document: Form Controls and ActiveX Controls . 4 Answers ...