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What does it mean that Javascript is a prototype based language?
...irectly from other objects. All of the business about classes goes away. If you want an object, you just write an object. But code reuse is still a valuable thing, so objects are allowed to be linked together in a hierarchy. In javascript, every object has a secret link to the object which creat...
how to run two commands in sudo?
...o ttt; db2 UPDATE CONTACT SET EMAIL_ADDRESS = 'mytestaccount@gmail.com'"
If your sudo version doesn't work with semicolons with -s (apparently, it doesn't if compiled with certain options), you can use
sudo -- sh -c 'whoami; whoami'
instead, which basically does the same thing but makes you na...
.gitignore after commit [duplicate]
...ce you probably want to keep the local copy but remove from the repo. ) So if you want to remove all the exe's from your repo do
git rm --cached /\*.exe
(Note that the asterisk * is quoted from the shell - this lets git, and not the shell, expand the pathnames of files and subdirectories)
...
Convert base-2 binary number string to int
...n='11111111')
>>> b.uint
255
Note that the unsigned integer is different from the signed integer:
>>> b.int
-1
The bitstring module isn't a requirement, but it has lots of performant methods for turning input into and from bits into other forms, as well as manipulating them.
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Does uninstalling a package with “pip” also remove the dependent packages?
...o, it doesn't uninstall the dependencies packages. It only removes the specified package:
$ pip install specloud
$ pip freeze # all the packages here are dependencies of specloud package
figleaf==0.6.1
nose==1.1.2
pinocchio==0.3
specloud==0.4.5
$ pip uninstall specloud
$ pip freeze
figleaf==0.6...
WPF Bind to itself
...
I have a DataGrid where if the user accesses one of its ContextMenu's MenuItem's Command's via an InputBinding's KeyBinding whose CommandParameter="{Binding ElementName=MyDataGrid, Path=SelectedItems}", it'll pass the SelectedItems to the Bound ICom...
What are some uses of decltype(auto)?
...instantiation was encountered when the return type of the template was specified as decltype(iter(Int<i-1>{})) instead of decltype(auto).
template<int i>
struct Int {};
constexpr auto iter(Int<0>) -> Int<0>;
template<int i>
constexpr auto iter(Int<i>) ->...
How do you unit test private methods?
...
If you are using .net, you should use the InternalsVisibleToAttribute.
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apache to tomcat: mod_jk vs mod_proxy
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What if your using Apache 2.0?
– blak3r
Aug 5 '11 at 22:42
11
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What does the “@” symbol mean in reference to lists in Haskell?
... between (1) or (2):(3).
This syntax actually works for any constructor; if you have data Tree a = Tree a [Tree a], then t@(Tree _ kids) gives you access to both the tree and its children.
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