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Instance variables vs. class variables in Python
...ut how this works yet. It is very similar to variable access -- the search order of which is:
locals
nonlocals
globals
built-ins
For attribute access, the order is:
instance
class
base classes as determined by the MRO (method resolution order)
Both techniques work in an "inside-out" manner, ...
Two single-column indexes vs one two-column index in MySQL?
...he first three columns, and so on. If you specify the columns in the right order in the index definition, a single composite index can speed up several kinds of queries on the same table." - Multiple-Column Indexes
– AlikElzin-kilaka
Sep 9 '18 at 4:46
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Explanation of strong and weak storage in iOS5
... all remaining weak pointers will be zeroed out.
Perhaps an example is in order.
Imagine our object is a dog, and that the dog wants to run away (be deallocated).
Strong pointers are like a leash on the dog. As long as you have the leash attached to the dog, the dog will not run away. If five peo...
add created_at and updated_at fields to mongoose schemas
...ppropriate
fields updated and the rest of the fields copied over.Then in order to
query this document you would get the one with the newest timestamp or
the highest version which is not "deleted" (the deleted field is undefined or false`).
Data immutability ensures that your data is debug...
Finding median of list in Python
... be of any size and the numbers are not guaranteed to be in any particular order.
24 Answers
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What's the difference between deque and list STL containers?
...idates only the iterators that point to the elements that are removed. The ordering of iterators may be changed (that is, list::iterator might have a different predecessor or successor after a list operation than it did before), but the iterators themselves will not be invalidated or made to point t...
Proper SCSS Asset Structure in Rails
...e problem with CSS is, you do not want to automatically add all files.
The order of which your sheets are loaded and processed by the browser is essential. So you will always end up explicitly importing all your css.
As an example, lets say you have a normalize.css sheet, to get a default look ins...
A semantics for Bash scripts?
...ion to Bash as a programming language. For example: What is the evaluation order? what are the scoping rules? What is the typing discipline, e.g. is everything a string? What is the state of the program -- is it a key-value assignment of strings to variable names; is there more than that, e.g. the s...
Disable sorting for a particular column in jQuery DataTables
...les example - HTML5 data-* attributes - table options
So you can use data-orderable="false" on the th of the column you don't want to be sortable. For example, the second column "Avatar" in the table below will not be sortable:
<table id="example" class="display" width="100%" data-page-length="...
SVN encrypted password store
... You can get it without recompiling, based on ubuntuforums.org/showthread.php?t=1348567. Just set this to ~/.subversion/config [auth] password-stores = gnome-keyring
– fikr4n
Apr 29 '12 at 3:21
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