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When to use RSpec let()?

...sn't use any of the instance variables defined in the hook. This isn't usually a big deal, but if the setup of the instance variable takes a long time, then you're wasting cycles. For the method defined by let, the initialization code only runs if the example calls it. You can refactor from a loca...
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The difference between fork(), vfork(), exec() and clone()

...d I expected there to be a huge amount of information on this, but there really wasn't any solid comparison between the four calls. ...
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Python Dictionary Comprehension

...>> print d {0: 0, 1: 1, 2: 4, 3: 9, 4: 16} If you want to set them all to True: >>> d = {n: True for n in range(5)} >>> print d {0: True, 1: True, 2: True, 3: True, 4: True} What you seem to be asking for is a way to set multiple keys at once on an existing dictionary. ...
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What exactly are DLL files, and how do they work?

... files, ...) that an EXE, or other DLL uses. Types of libraries: On virtually all operating systems, there are 2 types of libraries. Static libraries and dynamic libraries. In windows the file extensions are as follows: Static libraries (.lib) and dynamic libraries (.dll). The main difference i...
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MySQL pagination without double-querying?

... help a lot. The other way is to use SQL_CALC_FOUND_ROWS clause and then call SELECT FOUND_ROWS(). apart from the fact you have to put the FOUND_ROWS() call afterwards, there is a problem with this: There is a bug in MySQL that this tickles that affects ORDER BY queries making it much slower on lar...
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Could not load file or assembly 'Newtonsoft.Json' or one of its dependencies. Manifest definition do

... To solve this, I ensured all my projects used the same version by running the following command and checking the results: update-package Newtonsoft.Json -reinstall And, lastly I removed the following from my web.config: <dependentAssembly&gt...
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What to learn for making Java web applications in Java EE 6? [closed]

...s so cooool), and use Tomcat (and why not Jetty), or JBoss, or just forget all this and go for Grails, and bla bla bla...". But I don't think that this is really helping you and, without mentoring or guidance (and you won't find a non outdated unique resource covering all combinations), this must ...
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How to run only one local test class on Gradle

...eSpecificFeature gradle test --tests *SomeSpecificTest gradle test --tests all.in.specific.package* gradle test --tests *IntegTest gradle test --tests *IntegTest*ui* gradle test --tests *IntegTest.singleMethod gradle someTestTask --tests *UiTest someOtherTestTask --tests *WebTest*ui From version 1...
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How to delete duplicates on a MySQL table?

... The above query deleted all of my records except one :( – Zolbayar Aug 10 at 3:21 add a comment  |  ...
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What are the recommendations for html tag?

I've never seen <base> HTML tag actually used anywhere before. Are there pitfalls to its use that means I should avoid it? ...