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What does (x ^ 0x1) != 0 mean?
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Is this faster than != 1?
– Fiddling Bits
Dec 19 '13 at 10:58
2
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How do I import CSV file into a MySQL table?
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This is the best solution. For anyone curious how fast this is: I imported 3.2 million rows in under 14 secs on a $20/mo AWS Lightsail instance, with the onboard MySQL server (not a high performance RDS). Awesome!
– master_gracey
Sep 19...
How do I redirect to another webpage?
...l fail because it is called before document.onload to make the redirect as fast as possible. Nobody will see this text, it is only a tech fix.
var referLink = document.createElement("a");
referLink.href = url;
document.body.appendChild(referLink);
referLink.click();
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Difference between static class and singleton pattern?
...when the method returns, and those local variables are lost. Sure stack is fast, but it is not suitable to store static objects.
– mike_m
Jun 8 '14 at 10:36
25
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What's so great about Lisp? [closed]
...mbed your own DSLs in Lisp, and they can also be used to turn slow code to fast code via compiler macros. You can also turn Python(Hy) code into Rust(Risp), by transforming the sexp tree.
– aoeu256
Aug 29 '19 at 14:28
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How do I upgrade PHP in Mac OS X?
... to get the installation process via Homebrew to work, I tried this. Super fast, super easy and it actually worked straight out of the box! Thanks!
– Magnus W
Aug 17 '14 at 16:29
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sql primary key and index
...eating a unique index for the primary key columns. This index also permits fast access to data when the primary key is used in queries. Therefore, the primary keys that are chosen must follow the rules for creating unique indexes.
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Detect if a NumPy array contains at least one non-numeric value?
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This should be faster than iterating and will work regardless of shape.
numpy.isnan(myarray).any()
Edit: 30x faster:
import timeit
s = 'import numpy;a = numpy.arange(10000.).reshape((100,100));a[10,10]=numpy.nan'
ms = [
'numpy.isnan...
Using scanf() in C++ programs is faster than using cin?
...re not mixing stdio and iostream, we can turn it off, and then iostream is fastest.
The code: https://gist.github.com/3845568
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curl: (60) SSL certificate problem: unable to get local issuer certificate
...sure you enclose the path within double quotation marks!!!
By default, the FastCGI process will parse new files every 300 seconds (if required you can change the frequency by adding a couple of files as suggested here https://ss88.uk/blog/fast-cgi-and-user-ini-files-the-new-htaccess/).
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