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Gray out image with CSS?
...ray:
img{
filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#graysca...
What is the runtime performance cost of a Docker container?
I'd like to comprehensively understand the run-time performance cost of a Docker container. I've found references to networking anecdotally being ~100µs slower .
...
Python + Django page redirect
How do I accomplish a simple redirect (e.g. cflocation in ColdFusion, or header(location:http://) for PHP) in Django?
1...
What do *args and **kwargs mean? [duplicate]
...like this:
def my_sum(*args):
return sum(args)
It’s probably more commonly used in object-oriented programming, when you’re overriding a function, and want to call the original function with whatever arguments the user passes in.
You don’t actually have to call them args and kwargs, th...
Reusable library to get human readable version of file size?
...
If you want to increase the precision of the decimal component,change the 1 on lines 4 and 6 to whatever precision you want.
– Matthew G
May 10 '15 at 4:07
46...
How can I search for a multiline pattern in a file?
...he files that contained a specific string pattern. The first solution that comes to mind is using find piped with xargs grep :
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Can't use NVM from root (or sudo)
...
The below list of commands (source: digitalocean) seems to fix the problem
n=$(which node); \
n=${n%/bin/node}; \
chmod -R 755 $n/bin/*; \
sudo cp -r $n/{bin,lib,share} /usr/local
The above command is a bit complicated, but all it's doing i...
Variable declared in for-loop is local variable?
...tor of the local variable. Within the scope of a
local variable, it is a compile-time error to declare another local
variable or constant with the same name.
(Emphasis mine.)
Which means that the scope of the i inside your for-loop, is the for-loop. Whereas the scope of the i outside of your ...
Resize HTML5 canvas to fit window
...eta charset="utf-8">
<title>Resize HTML5 canvas dynamically | www.htmlcheats.com</title>
<style>
html, body {
width: 100%;
height: 100%;
margin: 0px;
border: 0;
overflow: hidden; /* Disable scrollbars */
display: block; /* No flo...
phpinfo() - is there an easy way for seeing it?
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Use the command line.
touch /var/www/project1/html/phpinfo.php && echo '<?php phpinfo(); ?>' >> /var/www/project1/html/phpinfo.php && firefox --url localhost/project1/phpinfo.php
Something like that? Idk!
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