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How to replace multiple strings in a file using PowerShell
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Assuming you can only have one 'something1' or 'something2', etc. per line, you can use a lookup table:
$lookupTable = @{
'something1' = 'something1aa'
'something2' = 'something2bb'
'something3' = 'something3cc'
'something4' = 'something4dd'
'something5' = 'somethi...
Node.js check if file exists
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A easier way to do this synchronously.
if (fs.existsSync('/etc/file')) {
console.log('Found file');
}
The API doc says how existsSync work:
Test whether or not the given path exists by checking with the file system.
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How to download source in ZIP format from GitHub?
...ut downloading the whole thing each time and writing over your own changes etc. A ZIP file won't let you do that.
It is mostly meant for people who want to develop the source rather than people who just want to get the source one off and not make changes.
But it just so happens you can get a ZIP f...
NVIDIA vs AMD: GPGPU performance
...to 1, and on gpgpu.org, search results (papers, links to online resources, etc) for NVIDIA outnumber results for AMD 6:1.
A huge part of this difference is the amount of online information available. Check out the NVIDIA CUDA Zone versus AMD's GPGPU Developer Central. The amount of stuff there fo...
Search and replace in bash using regular expressions
... the question correctly, is why the "full" or PCRE extensions \s\S\w\W\d\D etc don't work as supported in php ruby python etc. These extensions are from Perl-compatible regular expressions (PCRE) and may not be compatible with other forms of shell based regular expressions.
These don't work:
#!/b...
What's the difference between SCSS and Sass?
...in the most popular CSS frameworks like Bootstrap, Foundation, Materialize etc. The main UI frameworks favor scss over sass by default - Angular, React, Vue. Any tutorials or demos will generally use scss e.g create-react-app facebook.github.io/create-react-app/docs/…
– Drena...
How do you compare structs for equality in C?
...ting point types with redundant encodings. (Intel long double, decimal64, etc.) These issues make no difference is calloc() used or not or padding.
– chux - Reinstate Monica
Apr 14 '15 at 15:02
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Mutex example / tutorial? [closed]
...eady executing some lines of code. There are concepts of recursive mutexes etc, but this example was only meant to show you the basic concept. Hope the example gives you a clear picture of the concept.]
With C++11 threading:
#include <iostream>
#include <thread>
#include <mutex>...
How to calculate the angle between a line and the horizontal axis?
In a programming language (Python, C#, etc) I need to determine how to calculate the angle between a line and the horizontal axis?
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How to debug Lock wait timeout exceeded on MySQL?
...-----+-------+
1 row in set (0.01 sec)
You can set it to higher value in /etc/my.cnf permanently with this line
[mysqld]
innodb_lock_wait_timeout=120
and restart mysql. If you cannot restart mysql at this time, run this:
SET GLOBAL innodb_lock_wait_timeout = 120;
You could also just set it for t...