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Remove an item from a dictionary when its key is unknown
...
c is the new dictionary, and a is your original dictionary, {'z','w'}
are the keys you want to remove from a
c = {key:a[key] for key in a.keys() - {'z', 'w'}}
Also check: https://www.safaribooksonline.com/library/view/python-cookbo...
JavaScript equivalent to printf/String.Format
...ays, and strings as arguments! I got its code and reworked it to produce a new version of String.prototype.format:
String.prototype.formatUnicorn = String.prototype.formatUnicorn ||
function () {
"use strict";
var str = this.toString();
if (arguments.length) {
var t = typeof arg...
64-bit version of Boost for 64-bit windows
...you sure? It seems to have worked for me and this explicitly states to provide a path to 32 bit compiler even when building in 64 bit.
– Maciej Gryka
Jan 3 '12 at 12:39
...
Reverse / invert a dictionary mapping
... Yes, as a implementation detail. The order-preserving aspect of this new implementation is considered an implementation detail and should not be relied upon. There is no guarantee it will stay that way so don't write code relying on Dict having the same behavior as OrderedDict.
...
stringstream, string, and char* conversion confusion
...eds. It most possibly internally chooses the same storage location for the new temporary which it already chose for the temporary used to initialize cstr2. It could aswell crash.
cout << cstr // Prints correctly
<< ss.str().c_str() // Prints correctly
<< cstr2;...
How to install APK from PC?
... scan the QR code). Go to settings and under security (if your running the new ICS or Jellybean) or go to settings->apps->managment and select unknown sources(for gingerbread) then click on (I think) speed install, or something along those lines. it will be on the top of the page slightly towa...
Does it make any sense to use inline keyword with templates?
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f10535667%2fdoes-it-make-any-sense-to-use-inline-keyword-with-templates%23new-answer', 'question_page');
}
);
...
C++ preprocessor __VA_ARGS__ number of arguments
...8,_39,_40, \
_41,_42,_43,_44,_45,_46,_47,_48,_49,_50, \
_51,_52,_53,_54,_55,_56,_57,_58,_59,_60, \
_61,_62,_63,N,...) N
#define PP_RSEQ_N() \
63,62,61,60, \
59,58,57,56,55,54,53,52,51,50, \
49,48,47,46,45,44,43,42,41,40, \
...
How to see which commits in one branch aren't in the other?
... my big diff is to squash all 30 of my commits into one, patch that onto a new feature branch, soft reset the patch commit, then use git gui to add pieces file by file, chunk by chunk, or line by line. Once I get one sub-feature, I can commit what I've added then check out a new branch, add some mor...
Using PowerShell to write a file in UTF-8 without the BOM
...ems to work:
$MyRawString = Get-Content -Raw $MyPath
$Utf8NoBomEncoding = New-Object System.Text.UTF8Encoding $False
[System.IO.File]::WriteAllLines($MyPath, $MyRawString, $Utf8NoBomEncoding)
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