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Preloading images with jQuery
...gt;') would actually create the element within a hidden DIV, because it is more "complicated". However, I don't think this is needed for most browsers.
– JoshNaro
Feb 11 '11 at 15:30
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How do I erase an element from std::vector by index?
...es the second element (vec[1])
vec.erase(vec.begin() + 1);
Or, to delete more than one element at once:
// Deletes the second through third elements (vec[1], vec[2])
vec.erase(vec.begin() + 1, vec.begin() + 3);
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RegEx: Grabbing values between quotation marks
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Printing without newline (print 'a',) prints a space, how to remove?
...s += 'a'
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>>> print s
aaaaaaaaaaaaaaaaaaaa
Or you can do it more directly using sys.stdout.write(), which print is a wrapper around. This will write only the raw string you give it, without any formatting. Note that no newline is printed even at the end of the 20 as.
>>> imp...
Arrays vs Vectors: Introductory Similarities and Differences [closed]
...'ll probably start using arrays when interfacing with API's that deal with raw arrays, or when building your own collections.
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How to loop through a directory recursively to delete files with certain extensions
...xargs. I often find xargs cumbersome, especially if I need to do something more complicated in each iteration.
for f in $(find /tmp -name '*.pdf' -or -name '*.doc'); do rm $f; done
As a number of people have commented, this will fail if there are spaces in filenames. You can work around this by t...
Accessing MP3 metadata with Python [closed]
...le, why don't you make a library yourself and release it under BSD? Furthermore, this people don't own you anything in the first place. Look here diveintopython.org/object%5Foriented%5Fframework/index.html
– Esteban Küber
Jan 8 '10 at 14:46
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Best practices/performance: mixing StringBuilder.append with String.concat
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Django set field value after a form is initialized
...omForm(initial={'Email': GetEmailString()})
See the Django Form docs for more explanation.
If you are trying to change a value after the form was submitted, you can use something like:
if form.is_valid():
form.cleaned_data['Email'] = GetEmailString()
Check the referenced docs above for mor...
What's the best way to convert a number to a string in JavaScript? [closed]
... @MaryamSaeidi: Using drublic's jsperf.com test above seems more consistent.
– Giraldi
Apr 21 '18 at 9:38
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