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Cost of len() function
...0000 loops, best of 3: 0.0713 usec per loop
Deque:
$ python -mtimeit -s"from collections import deque;d=deque(range(10));" "len(d)"
100000000 loops, best of 3: 0.0163 usec per loop
$ python -mtimeit -s"from collections import deque;d=deque(range(1000000));" "len(d)"
100000000 loops, best of 3: 0...
Favicon dimensions? [duplicate]
...2x32 picture last: it is good enough for Firefox, and that will prevent it from downloading a big picture it does not need. edit: fixed in 2016.
Also note that Chrome does not support the sizes attribute and tends to load all declared icons. Better not declare too many icons. edit: fixed in 2018.
Mo...
Java ArrayList - how can I tell if two lists are equal, order not mattering?
...clear reasons why not.
There are a few answers here which suggest methods from CollectionUtils in the Apache Commons Collections library but none has spotted the most beautiful, elegant way of answering this question:
Collection<Object> culprits = CollectionUtils.disjunction( list1, list2 );...
Python dict how to create key or append an element to key?
...
You can use a defaultdict for this.
from collections import defaultdict
d = defaultdict(list)
d['key'].append('mykey')
This is slightly more efficient than setdefault since you don't end up creating new lists that you don't end up using. Every call to setdefa...
Why can't I use a list as a dict key in python?
...pected behavior. Lists are generally treated as if their value was derived from their content's values, for instance when checking (in-)equality. Many would - understandably - expect that you can use any list [1, 2] to get the same key, where you'd have to keep around exactly the same list object. B...
How to customize a Spinner in Android
...ioedittxt5);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
R.array.travelreasons, R.layout.simple_spinner_item);
adapter.setDropDownViewResource(R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
R.layout.simple_spinner_item
<TextVie...
How are VST Plugins made?
...ins in C++Builder, first you need the VST sdk by Steinberg. It's available from the Yvan Grabit's site (the link is at the top of the page).
The next thing you need to do is create a .def file (for example : myplugin.def). This needs to contain at least the following lines:
EXPORTS main=_main
Bo...
How to Parse Command Line Arguments in C++? [duplicate]
...forks on GitHub are available), the API is very straightforward and (cited from the site):
the library is implemented entirely in header files making it easy to
use and distribute with other software. It is licensed under the MIT
License for worry free distribution.
This is an example from...
Font scaling based on width of container
...ve been had the "width" of the original 50% container been reduced by half from viewport sizing, but has now been reduced due to a change in its own percentage calculation.
A Challenge
With the CSS3 calc() function in use, it would become difficult to adjust dynamically, as that function does not wo...
How to add extra namespaces to Razor pages instead of @using declaration?
...ection. However in the Beta there is a new config section that is seperate from the WebForms one. You will need to add the follwing to your web.config file (or just start with a brand new project from the template):
<configSections>
<sectionGroup name="system.web.webPages.razor" type="Sy...