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How do I concatenate two lists in Python?
...ise fashion, which means this is a
quadratic operation as memory has to be allocated for each step. DO
NOT USE if your lists are large.
See chain
and
chain.from_iterable
from the docs. You will need to import itertools first.
Concatenation is linear in memory, so this is the best in terms of
perfor...
Is it possible to include a file in your .gitconfig
...ommand which among other things, allows you to have GITHUB_USER and GITHUB_TOKEN environment variables. Which will override the settings in the local .gitconfig file.
Then to make it seamless the user you pointed to aliased alias git=hub in his ZSH config. You should be able to then source a local...
JavaScript hide/show element
...isibility:hidden unlike display:none, the tag is not visible, but space is allocated for it on the page. The tag is rendered, it just isn't seen on the page.
See this link to see the differences.
share
|
...
Are there strongly-typed collections in Objective-C?
...natomic) T prop;
@end
Use:
FooClass<NSString *> *foo = [[FooClass alloc] init];
NSArray<FooClass<NSString *> *> *fooAry = [NSArray array];
Be careful about those *s.
share
|
i...
How do I solve the INSTALL_FAILED_DEXOPT error?
...k space" error - and looking at the emulator properties, the default space allocated for internal storage is 800MB which seems low.
Solution, therefore was to increase this (I went to 4GB). Oddly the emulator still boots with the same disk space warning but factory resetting it (Settings --> Bac...
What is the most “pythonic” way to iterate over a list in chunks?
..., len(seq), size))
# (in python 2 use xrange() instead of range() to avoid allocating a list)
Works with any sequence:
text = "I am a very, very helpful text"
for group in chunker(text, 7):
print(repr(group),)
# 'I am a ' 'very, v' 'ery hel' 'pful te' 'xt'
print '|'.join(chunker(text, 10))
# I...
What characters are forbidden in Windows and Linux directory names?
...es. He used that directory for all manner of tests of pattern-matching and tokenization. (The test directory was of course created by a program.) For years afterwards, that directory was the bane of file-tree-walking programs; it tested them to destruction.
Note that the directory must have contai...
Best way to implement request throttling in ASP.NET MVC?
...sage that will be sent to the client upon throttling. You can include the token {n} to
/// show this.Seconds in the message, e.g. "Wait {n} seconds before trying again".
/// </summary>
public string Message { get; set; }
public override void OnActionExecuting(ActionExecutingC...
TINYTEXT, TEXT, MEDIUMTEXT, and LONGTEXT maximum storage sizes
...h language has an average of 4.5 letters per word
x is the number of bytes allocated
x-x
Type | A= worst case (x/3) | B = best case (x) | words estimate (A/4.5) - (B/4.5)
-----------+---------------------------------------------------------------------------
TINYTEXT | 85 ...
What is the zero for string?
... NewKey(c, "kind", "", 0, p)
From the specification :
When memory is allocated to store a value, either through a
declaration or a call of make or new, and no explicit initialization
is provided, the memory is given a default initialization. Each
element of such a value is set to the zer...