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Performance difference for control structures 'for' and 'foreach' in C#
...any way significant or not will depend on whether you're doing any real work in the loop. In almost all cases, the difference to performance won't be significant, but the difference to readability favours the foreach loop.
I'd personally use LINQ to avoid the "if" too:
foreach (var item in list.Wh...
Hide/Show Column in an HTML Table
...ns and I need to implement a column chooser using jquery. When a user clicks on a checkbox I want to hide/show the corresponding column in the table. I would like to do this without attaching a class to every td in the table, is there a way to select an entire column using jquery? Below is an exa...
What are database normal forms and can you give examples? [closed]
...s) to reduce data redundancy and improve data integrity. (as written on Wikipedia ).
4 Answers
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How can I randomize the lines in a file using standard tools on Red Hat Linux?
...-place") to have it edit the file. The documentation suggests it should work, but it doesn't. It still displays the shuffled file to stdout, but this time it deletes the original. I suggest you don't use it.
Consider a shell script:
#!/bin/sh
if [[ $# -eq 0 ]]
then
echo "Usage: $0 [file ...]"
...
How to get a function name as a string?
...me__
Using __name__ is the preferred method as it applies uniformly. Unlike func_name, it works on built-in functions as well:
>>> import time
>>> time.time.func_name
Traceback (most recent call last):
File "<stdin>", line 1, in ?
AttributeError: 'builtin_function_or_met...
Install a Python package into a different directory using pip?
I know the obvious answer is to use virtualenv and virtualenvwrapper, but for various reasons I can't/don't want to do that.
...
What is the use of the %n format specifier in C?
... edited Oct 21 '14 at 17:29
rink.attendant.6
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answered Aug 3 '10 at 22:14
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.gitignore and “The following untracked working tree files would be overwritten by checkout”
...
It seems like you want the files ignored but they have already been commited. .gitignore has no effect on files that are already in the repo so they need to be removed with git rm --cached. The --cached will prevent it from having any e...
How do I configure Maven for offline development?
...pecifically getting the internal maven plugins for compiling, cleaning, packaging, etc?
14 Answers
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jQuery UI Sortable, then write order into a database
...des a serialize method to do this. It's quite simple, really. Here's a quick example that sends the data to the specified URL as soon as an element has changes position.
$('#element').sortable({
axis: 'y',
update: function (event, ui) {
var data = $(this).sortable('serialize');
...