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How do I append one string to another in Python?
...:
s+=str(i)
used to be O(n^2), but now it is O(n).
From the source (bytesobject.c):
void
PyBytes_ConcatAndDel(register PyObject **pv, register PyObject *w)
{
PyBytes_Concat(pv, w);
Py_XDECREF(w);
}
/* The following function breaks the notion that strings are immutable:
it change...
ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired
...
Your table is already locked by some query. For example, you may have executed "select for update" and have not yet committed/rollbacked and fired another select query. Do a commit/rollback before executing your query.
...
How to set a Django model field's default value to a function call / callable (e.g., a date relative
... Please uncheck this answer, as it is wrong for Djange>=1.7. The answer by @Simanas is absolutely correct and should therefore be accepted.
– AplusKminus
Mar 30 '15 at 15:51
...
Remove leading or trailing spaces in an entire column of data
...e
You can also remove the CHAR(160) directly without a workaround formula by
Edit .... Replace your selected data,
in Find What hold ALT and type 0160 using the numeric keypad
Leave Replace With as blank and select Replace All
...
NUnit vs. MbUnit vs. MSTest vs. xUnit.net [closed]
...rom excel, database, or even a custom data source such as a Word document (by extending the base data attribute.) This allows you to capitalize on a single testing platform for both unit tests and integration tests, which can be huge in reducing product dependencies and required training.
Other app...
Rails: fields_for with index?
...ams. So, inside your rendered _some_form.html.erb,
Index can be accessed by:
<%= f.options[:child_index] %>
You don't need to do anything else.
Update: It seems that my answer wasn't clear enough...
Original HTML File:
<!-- Main ERB File -->
<% f.fields_for :questions do |bu...
How do you run NUnit tests from Jenkins?
...
If we do have Test, which we are executing by Test Playlist. Can we execute this test playlist for Jenkins, By using .dll ?
– Ishita Shah
Dec 7 '18 at 7:46
...
Is it possible to use jQuery .on and hover?
...web and felt I could contribute. I noticed that with the above code posted by @calethebrewer can result in multiple calls over the selector and unexpected behaviour for example: -
$(document).on('mouseover', '.selector', function() {
//do something
});
$(document).on('mouseout', '.selector', fun...
How to get the class of the clicked element?
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
How do I properly force a Git push?
...ed data that shouldn't be pushed. If you're fast enough, you can "fix"* it by forcing a push on top.
* The data will still be on the remote unless you also do a garbage collect, or clean it somehow. There is also the obvious potential for it to be spread by others who'd fetched it already, but you g...