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AngularJS directive with default options
...default options for my (element) directive, which can be overridden by specifying the option value in an attribute.
3 Answe...
Looping over a list in Python
...list = [[1,2,3],[4,5,6,7],[8,9,10]]
>>> for x in mylist:
... if len(x)==3:
... print x
...
[1, 2, 3]
[8, 9, 10]
or if you need more pythonic use list-comprehensions
>>> [x for x in mylist if len(x)==3]
[[1, 2, 3], [8, 9, 10]]
>>>
...
Purpose of Django setting ‘SECRET_KEY’
....SECRET_KEY)
contrib/messages/storage/cookie.py:112: SECRET_KEY, modified to make it unique for the present purpose.
contrib/messages/storage/cookie.py:114: key = 'django.contrib.messages' + settings.SECRET_KEY
contrib/sessions/backends/base.py:89: pickled_md5 = md5_constructor(...
Assertion failure in dequeueReusableCellWithIdentifier:forIndexPath:
...
You're using the dequeueReusableCellWithIdentifier:forIndexPath: method. The documentation for that method says this:
Important: You must register a class or nib file using the registerNib:forCellReuseIdentifier: or registerClass:forCellReuseIdentifier: method befo...
How do I get the path of a process in Unix / Linux
...
sudo if output is empty, some processes are created by other system users.
– Lun4i
Sep 2 '17 at 5:21
add ...
C-like structures in Python
...thon 2.6. It's also possible to use Raymond Hettinger's named tuple recipe if you need to support Python 2.4.
It's nice for your basic example, but also covers a bunch of edge cases you might run into later as well. Your fragment above would be written as:
from collections import namedtuple
MyStru...
Given an array of numbers, return array of products of all other numbers (no division)
...t i=0;i<N;++i) {
products[i]=products_below[i]*products_above[i];
}
If you need to be O(1) in space too you can do this (which is less clear IMHO)
int a[N] // This is the input
int products[N];
// Get the products below the current index
p=1;
for(int i=0;i<N;++i) {
products[i]=p;
p*=...
Detect Retina Display
Does iOS SDK provides an easy way to check if the currentDevice has an high-resolution display (retina) ?
14 Answers
...
Copy file or directories recursively in Python
...
I suggest you first call shutil.copytree, and if an exception is thrown, then retry with shutil.copy.
import shutil, errno
def copyanything(src, dst):
try:
shutil.copytree(src, dst)
except OSError as exc: # python >2.5
if exc.errno == errno.E...
How can I set the default value for an HTML element?
...
If you're using Angular, note that ng-model overrides the the default selected value (even as undefined if you did not set the bound object). Took me a while to figure that was why the selected="selected" option was not selec...