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How do I check if a variable exists in a list in BASH
...ars, like . (but the $list variable probably needs to be quoted inside the test). And the function may be defined even simpler: contains () { [[ "$1" =~ (^|[[:space:]])"$2"($|[[:space:]]) ]]; }.
– skozin
Nov 2 '14 at 3:50
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What’s the difference between “Array()” and “[]” while declaring a JavaScript array?
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Unfortunately that test is improperly prepared. It's testing an initialization of an Array with initializations of arrays followed by Array access. There's no control to prove that the browsers are actually pre-allocating the memory (which the ...
Is Task.Result the same as .GetAwaiter.GetResult()?
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@JayBazuzi Not if your unit testing framework supports async unit tests, which I think newest versions of most frameworks do.
– svick
Jun 24 '13 at 20:52
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What are the differences between double-dot “..” and triple-dot “…” in Git diff commit ranges?
...m graph tree
A0 <- A1 <- A2 <- A3 (master)
\
C0 <- C1 (test)
A picture is worth a thousand words, the difference between .. ... ^ is shown below.
$ git log master..test
# output C0 C1
$ git log ^master test
# output C0 C1
$ git log master…test
# output A1 A2 A3 C0 C1
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How to “perfectly” override a dict?
...nsform__(self, key):
return key.lower()
s = MyTransformedDict([('Test', 'test')])
assert s.get('TEST') is s['test'] # free get
assert 'TeSt' in s # free __contains__
# free setdefault, __eq__, and so on
import pickle
# works too sinc...
What should I do if two libraries provide a function with the same name generating a conflict?
...ATE: I just did it on this end and it seems to work. Of course, I've not tested this thoroughly - it may be no more than a really good way to blow your leg off with a hexedit shotgun.
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Chrome, Javascript, window.open in new tab
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I just want to add that by testing in Chrome and FF I found out that using window.open in what you define as a “user initiated event” keeps the browser default action. By that I mean that if in Chrome you hold shift on chrome and click a new browse...
detach all packages while working in R
...,sep=""),detach,character.only=TRUE,unload=TRUE)
(edit: 6-28-19)
In the latest version of R 3.6.0 please use instead.
invisible(lapply(paste0('package:', names(sessionInfo()$otherPkgs)), detach, character.only=TRUE, unload=TRUE))
Note the use of invisible(*) is not necessary but can be useful to p...
String vs. StringBuilder
... It still depends on how one uses it, for a reference to actually tests I like Coding Horror - The Sad Tragedy of Micro-Optimization Theater
– Erik Philips
Jul 27 '13 at 17:38
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Where is Vagrant saving changes to the VM?
...I change it to something like "D:\VHDs\VBox\" and there I found my vagrant test vm: "test01_1347456065". It was called test01, so I guess vagrant adds the numbers to keep things unique.
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