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jQuery Ajax File Upload
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File upload is not possible through AJAX.
You can upload file, without refreshing page by using IFrame.
You can check further details here.
UPDATE
With XHR2, File upload through AJAX is supported. E.g. through FormData object, but unfortunately it is not supported by all/old browsers.
F...
Two versions of python on linux. how to make 2.7 the default
...runs the standard 2.6.
Alternatively, just create a virtual environment out of your 2.7 (or separate venvs for different projects), and do your work inside the venv.
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How to undo a git merge with conflicts
...set --merge even in more recent versions. I've had git merge --abort error out (making no changes) where git reset --merge succeeds (and does the right thing) in git 2.2.1.
– Theodore Murdock
Nov 18 '15 at 19:26
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Numpy: Divide each row by a vector element
...ely np.newaxis) combined with broadcasting:
In [6]: data - vector[:,None]
Out[6]:
array([[0, 0, 0],
[0, 0, 0],
[0, 0, 0]])
In [7]: data / vector[:,None]
Out[7]:
array([[1, 1, 1],
[1, 1, 1],
[1, 1, 1]])
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How do I remove leading whitespace in Python?
...> ' hello world!'.lstrip()
'hello world!'
Edit
As balpha pointed out in the comments, in order to remove only spaces from the beginning of the string, lstrip(' ') should be used:
>>> ' hello world with 2 spaces and a tab!'.lstrip(' ')
'\thello world with 2 spaces and a tab!'
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postgresql - replace all instances of a string within text field
...replaced with lower-case "dog" which break sentence capitalization.
Check out the current PostgreSQL pattern matching docs for all the details.
Update entire column with replacement text
Given my examples, maybe the safest option would be:
UPDATE table SET field = regexp_replace(field, '\mcat\M'...
What is the difference between null and undefined in JavaScript?
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@Wolfgang Adamec, error-free programming is not about mistypes.
– Jorge Fuentes González
Mar 15 '13 at 17:12
13
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CSS overflow-x: visible; and overflow-y: hidden; causing scrollbar issue
...ppling. Why can't we allow overflow-x:visible during overflow-y:hidden without a parent/child hack? Pretty bunk, IMO.
– Slink
Jun 27 '14 at 14:14
35
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Use JAXB to create Object from XML String
..., and comes more than one attribute, you can handle it as follows:
String output = "<ciudads><ciudad><idCiudad>1</idCiudad>
<nomCiudad>BOGOTA</nomCiudad></ciudad><ciudad><idCiudad>6</idCiudad>
<nomCiudad>Pereira</nomCiudad><...
Unstage a deleted file in git
...stores the file status in the index
git reset -- <file>
# then check out a copy from the index
git checkout -- <file>
To undo git add <file>, the first line above suffices, assuming you haven't committed yet.
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