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How to check if type of a variable is string?
...wer:
Watch out for unicode strings, which you can get from several places, including all COM calls in Windows.
if isinstance(target, str) or isinstance(target, unicode):
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How many concurrent requests does a single Flask process receive?
...ver. 4 workers == 4 concurrent requests. This is because Gunicorn uses its included sync worker type by default.
It is important to note that Gunicorn also includes asynchronous workers, namely eventlet and gevent (and also tornado, but that's best used with the Tornado framework, it seems). By sp...
Git - Undo pushed commits
..._hash>..<latest_commit_hash>
It reverts the commits between and including the specified commits.
Look at the git-revert man page for more information about the git revert command. Also look at this answer for more information about reverting commits.
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How to resolve : Can not find the tag library descriptor for “http://java.sun.com/jsp/jstl/core” [du
...://java.sun.com/jsp/jstl/core" %>
but I don't get any error.
Did you include the jstl.jar in your library? If not maybe this causing the problem. And also the 'tld' folder do you have it? And how about your web.xml did you map it?
Have a look on the info about jstl for other information.
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How to clone a Date object?
...: true, but getTime() could "looks" like it only returns the time and not include the date as well hence my reference to "cleanest". Frankly the Date type in Javascript is a bit of disaster zone, it should never have been mutable in the first place.
– AnthonyWJones
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how to change namespace of entire project?
... Unfortunately this does not work if you want the new name to include a . character.
– Botond Balázs
Oct 17 '16 at 7:52
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(Mac) -bash: __git_ps1: command not found
...ur ~/.bash_profile:
source ~/.git-prompt.sh
Then your PS1 variable that includes __git_ps1 '%s' should work fine.
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Where should I put tags in HTML markup?
...L document, where is the proper place to put the <script> tags and included JavaScript? I seem to recall that you are not supposed to place these in the <head> section, but placing at the beginning of the <body> section is bad, too, since the JavaScript will have to be parsed...
How to count occurrences of a column value efficiently in SQL?
...ge)
FROM Students
GROUP by age
If you need the id as well you could include the above as a sub query like so:
SELECT S.id, S.age, C.cnt
FROM Students S
INNER JOIN (SELECT age, count(age) as cnt
FROM Students
GROUP BY age) C ON S.age = C.age...
How do I auto-hide placeholder text upon focus using css or jquery?
...placeholder text out. It works for any element that can use placeholders, including textarea and input tags.
::-webkit-input-placeholder { opacity: 1; -webkit-transition: opacity .5s; transition: opacity .5s; } /* Chrome <=56, Safari < 10 */
:-moz-placeholder { opacity: 1; -moz-transitio...