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Null coalescing in powershell
...suggestion from an anonymous user. Thanks, whoever you are!
Based on the order of operations, this works in following order:
The , operator creates an array of values to be tested.
The -ne operator filters out any items from the array that match the specified value--in this case, null. The resu...
Add a prefix to all Flask routes
...prefix.
The mask argument is a `format string` formatted with, in that order:
prefix, route
'''
def newroute(route, *args, **kwargs):
'''New function to prefix the route'''
return route_function(mask.format(prefix, route), *args, **kwargs)
return newroute
Arguably, this is ...
What is the difference between a strongly typed language and a statically typed language?
...
What is the difference between a strongly typed language and a statically typed language?
A statically typed language has a type system that is checked at compile time by the implementation (a compiler or interpreter). The type check rejects some programs, and programs that pass the check u...
Unix's 'ls' sort by name
...ort. For just a list of file names:
ls -1 | sort
To sort them in reverse order:
ls -1 | sort -r
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How to show google.com in an iframe?
...ilar to Google style. Google CSE works with web and images search.
google.php
<script>
(function() {
var cx = 'xxxxxxxxxxxxxxxxxxxxxx';
var gcse = document.createElement('script');
gcse.type = 'text/javascript';
gcse.async = true;
gcse.src = 'https://cse.google.com/cse....
PDO's query vs execute
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query runs a standard SQL statement and requires you to properly escape all data to avoid SQL Injections and other issues.
execute runs a prepared statement which allows you to bind parameters to avoid the need to escape or quote the parameters. execute will also perform better if you are repeat...
Grunt watch error - Waiting…Fatal error: watch ENOSPC
...
In my case my problem seems to be to have Dropbox installed which seems to use a lot of watches. So I had to use: fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p as in the accepted answer, but +1 for teach me npm dedupe
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Why is `std::move` named `std::move`?
...by the rest of the program (nobody else has
a reference to the rvalue in order to detect a difference).
If at the time swap was instead presented like this:
template <class T>
void
swap(T& a, T& b)
{
T tmp(cast_to_rvalue(a));
a = cast_to_rvalue(b);
b = cast_to_rvalue(t...
Gzip versus minify
...n, it depends on how you work. You'd have to keep the original CSS file in order to make edits further down the line. If it doesn't bother you to minify it after every change then go for it.
(Note: there are other solutions, such as running it through a minifier "on-demand" when serving the file, a...
What Process is using all of my disk IO
...ent sort column
< and > = change sort column
R = reverse sort order
Chose 'S', the process status column. Reverse the sort order so the 'R' (running) processes are shown on top. If you can spot 'D' processes (waiting for disk), you have an indicator what your culprit might be.
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