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Creating an empty Pandas DataFrame, then filling it?
...as a new feature in 0.8.0, I would definitely recommend upgrading to the latest stable release (0.9.1) there are many bug fixes and new features. :)
– Andy Hayden
Dec 15 '12 at 9:52
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Read each line of txt file to new array element
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The fastest way that I've found is:
// Open the file
$fp = @fopen($filename, 'r');
// Add each line to an array
if ($fp) {
$array = explode("\n", fread($fp, filesize($filename)));
}
where $filename is going to be the path &...
Render basic HTML view?
... be able to render that html page without a jade template just for initial testing of express?
– PositiveGuy
Feb 24 '16 at 8:32
1
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Merge two Git repositories without breaking file history
...d add the old remote repository.
git clone https://github.com/alexbr9007/Test.git
cd Test
git remote add OldRepo https://github.com/alexbr9007/Django-React.git
git remote -v
Fetch for all the files from the old repo so a new branch gets created.
git fetch OldRepo
git branch -a
In the master b...
Cross-Domain Cookies
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FWIW I just tested a normal CORS withCredentials XHR and it worked on FF/Safari/Chrome...though I wouldn't doubt that facebook/google use more sophisticated schemes
– rogerdpack
Apr 14 '17 at 19:11
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In C++, is it still bad practice to return a vector from a function?
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@SigTerm: I work on "actual-case scenario". I test what the compiler does and work with that. There is no "may work slower". It simply does not work slower because the compiler DOES implement RVO, whether the standard requires it or not. There are no ifs, buts, or maybes...
What are the main performance differences between varchar and nvarchar SQL Server data types?
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@Thomas Harlan A simple test demonstrates to me that there is no tangible difference between joining nvarchar to varchar vs converting nvarchar to varchar and joining to varchar. Unless of course you meant being consistent in column datatypes, not i...
How does Stack Overflow generate its SEO-friendly URLs?
...d to "ss" sb.Length == maxlene will never be true, it is better instead to test for (sb.Length > = maxlen).
– Henrik Stenbæk
Mar 29 '12 at 13:14
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Compare two objects' properties to find differences?
...type, and I want to loop through the public properties on each of them and alert the user about which properties don't match.
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Passing functions with arguments to another function in Python?
... I think that the lambda version is quite neat, but oddly in tests I ran it was slower to call functions via the lambda than by the fn(*args) method discussed in another answer.
– Richard Shepherd
Jan 2 '14 at 16:57
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