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How to unit test a Node.js module that requires other modules and how to mock the global require fun
... are trying to test and pass along mocks/stubs for its required modules in one simple step.
@Raynos is right that traditionally you had to resort to not very ideal solutions in order to achieve that or do bottom-up development instead
Which is the main reason why I created proxyquire - to allow to...
clear table jquery
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careful with that last one: most browsers add an implicit tbody element around the tr elements.
– nickf
Apr 12 '10 at 6:20
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How to download and save a file from Internet using Java?
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Use apache commons-io, just one line code:
FileUtils.copyURLToFile(URL, File)
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Difference between Big-O and Little-O Notation
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f ∈ O(g) says, essentially
For at least one choice of a constant k > 0, you can find a constant a such that the inequality 0 <= f(x) <= k g(x) holds for all x > a.
Note that O(g) is the set of all functions for which this condition holds.
f ∈ o(g)...
MongoDB Many-to-Many Association
...or instance, if the document structures require acquiring a lock, updating one document, then another, and possibly more documents, then releasing the lock, likely the model has failed. Just because we can build distributed locks doesn't mean that we are supposed to use them.
For the case of the U...
Git commits are duplicated in the same branch after doing a rebase
...oing a force push from dev to origin/dev after the rebase and notifying anyone else working off of origin/dev that they're probably about to have a bad day. The better answer, again, is "don't do that... use merge instead"
– Justin ᚅᚔᚈᚄᚒᚔ
Sep 21 '16...
Database cluster and load balancing
...e servers so the load is as evenly distributed as possible. It is usually done at the application layer (or with a connection pool). The only direct relation between replication and load balancing is that you need some replication to be able to load balance, else you'd have a single server.
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A regular expression to exclude a word/string
...d):
^/(?!ignoreme|ignoreme2|ignoremeN)([a-z0-9]+)$
Note: There's only one capturing expression: ([a-z0-9]+).
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Using 'starts with' selector on individual class names
... Hmm...clever! I hadn't thought of using space in there. Can one use boolean operators in a jquery selector? Ideally, the above would be 'OR' to avoid the (rare and likely avoidable) case where there are more than one class staring with 'apple-'
– DA.
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How to check if a string is a valid date
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Here is a simple one liner:
DateTime.parse date rescue nil
I probably wouldn't recommend doing exactly this in every situation in real life as you force the caller to check for nil, eg. particularly when formatting. If you return a default...