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How do I calculate square root in Python?
...ethod can be computed as: sqrt = x**(float(1)/2)
– VM_AI
Sep 28 '18 at 10:41
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Why does the C++ STL not provide any “tree” containers?
...antees log(n) insertion/deletion/lookup (and containing elements in sorted order). This is all map is used for and is implemented (usually) as a red/black tree. A red/black tree makes sure that the tree is balanced. So the depth of the tree is directly related to the number of elements in the tree.
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Why isn't ProjectName-Prefix.pch created automatically in Xcode 6?
...e. Stop writing macros unless there is no other way (such as when you need __FILE__). If you do need macros, put them in a header and include it.
The prefix header was necessary for things that are huge and used by nearly everything in the whole system (like Foundation.h). If you have something tha...
Delete all documents from index/type without deleting type
... (using your example):
curl -XDELETE 'http://localhost:9200/twitter/tweet/_query' -d '{
"query" : {
"match_all" : {}
}
}'
Or you could just delete the type:
curl -XDELETE http://localhost:9200/twitter/tweet
...
“x not in y” or “not x in y”
...am' not in 'spam and eggs'
>>> dis.dis(notin)
2 0 LOAD_CONST 1 ('ham')
3 LOAD_CONST 2 ('spam and eggs')
6 COMPARE_OP 7 (not in)
9 POP_TOP
10 LOAD_CONST 0 (...
Get file version in PowerShell
...s:
get-childitem * -include *.dll,*.exe | foreach-object { "{0}`t{1}" -f $_.Name, [System.Diagnostics.FileVersionInfo]::GetVersionInfo($_).FileVersion }
Or even nicer as a script: https://jtruher3.wordpress.com/2006/05/14/powershell-and-file-version-information/
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Should I make HTML Anchors with 'name' or 'id'?
...hat has an ID exactly equal to fragid, then the first such element in tree order is the indicated part of the document; stop the algorithm here.
If there is an a element in the DOM that has a name attribute whose value is exactly equal to fragid, then the first such element in tree order is the...
Django DB Settings 'Improperly Configured' Error
...--settings=mysite.settings (or whatever settings module you use)
Set DJANGO_SETTINGS_MODULE environment variable in your OS to mysite.settings
(This is removed in Django 1.6) Use setup_environ in the python interpreter:
from django.core.management import setup_environ
from mysite import settings
s...
How can I listen for a click-and-hold in jQuery?
...tartTrigger(e) {
var $elem = $(this);
$elem.data('mouseheld_timeout', setTimeout(function() {
$elem.trigger('mouseheld');
}, e.data));
}
function stopTrigger() {
var $elem = $(this);
clearTimeout($elem.data('mouseheld_timeout'));
}
...
C++ Erase vector element by value rather than by position? [duplicate]
and lets say the values in the vector are this (in this order):
4 Answers
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