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How do I determine the size of an object in Python?
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How do I drop a foreign key constraint only if it exists in sql server?
... TABLE t
DROP CONSTRAINT IF EXISTS tpartnt
GO
DROP TABLE IF EXISTS t
See http://blogs.msdn.com/b/sqlserverstorageengine/archive/2015/11/03/drop-if-exists-new-thing-in-sql-server-2016.aspx
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Scroll to a div using jquery
...croll upto Div with jQuery.
</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
<script>
$(document).ready(function () {
$("#button1").click(function () {
var...
Is optimisation level -O3 dangerous in g++?
... heard from various sources (though mostly from a colleague of mine), that compiling with an optimisation level of -O3 in g++ is somehow 'dangerous', and should be avoided in general unless proven to be necessary.
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Illegal string offset Warning PHP
...; // causes illegal string offset error
You can see this in action here:
http://ideone.com/fMhmkR
For those who come to this question trying to translate the vagueness of the error into something to do about it, as I was.
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What are fail-safe & fail-fast Iterators in Java
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Querying DynamoDB by date
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Date value of CreatedAt | CreatedAt
Limitation imposed on the HTTP API user to specify the number of days to retrieve data, defaulted to 24 hr.
This way, I can always specify the HashKey as Current date's day and RangeKey can use > and < operators while retrieving. This way the d...
What is the best way to iterate over a dictionary?
... As I understand it, var only works if the type is known at compile time. If Visual Studio knows the type then it's available for you to find out as well.
– Kyle Delaney
Sep 21 '17 at 13:06
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Given an emacs command name, how would you find key-bindings ? (and vice versa)
... Having which-key around has helped me discover many rare gems in Emacs.
https://github.com/justbur/emacs-which-key
Guide key
Guide key works in much the same way as which-key I'd recommend taking a look at it to compare features.
https://github.com/kai2nenobu/guide-key
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Which is the preferred way to concatenate a string in Python?
...ast, which one you choose is a matter of taste, the latter one is the most common. Here are timings with the timeit module:
a = a + b:
0.11338996887207031
a += b:
0.11040496826171875
However, those who recommend having lists and appending to them and then joining those lists, do so because append...