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Recommendation for compressing JPG files with ImageMagick
...u don't have to add "-filter Lanczos". It's set by default imagemagick.org/script/command-line-options.php#filter
– Ilya Prokin
Sep 22 '16 at 15:04
...
How to stop /#/ in browser with react-router?
...hp
#RewriteBase /
# Defining the rewrite rules
RewriteCond %{SCRIPT_FILENAME} !-d
RewriteCond %{SCRIPT_FILENAME} !-f
RewriteRule ^.*$ ./index.html
Then you obtain the query parameters with window.location.pathname
You can then avoid using react routes if you want and just m...
Node.js throws “btoa is not defined” error
...se the btoa() and atob() functions which are native in client-side javascript but for some reason weren't included in node. The new directory showed up in my node_modules folder, which itself is in root alongside app.js . Then I made sure to add btoa-atob as a dependency in my package.json ...
How do you make an element “flash” in jQuery
...IndianRed;
height: 50px;
line-height: 50px;
width: 150px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<button onclick="go1()">Click Me</button>
<div id='demo1'>My Element</div>
<br>
<button on...
Is it a good practice to use an empty URL for a HTML form's action attribute? (action=“”)
...ed in your page then a user can enter a slash (/) and then some Cross Site Scripting (XSS) commands to execute. If you omit the action attribute, are you still vulnerable to this?
– Richard Young
Nov 22 '16 at 11:16
...
Move the mouse pointer to a specific position?
...
You cannot move the mousepointer with javascript.
Just think about the implications for a second, if you could ;)
User thinks: "hey I'd like to click this link"
Javascript moves mousecursor to another link
User clicks wrong link and inadvertently downloads malware...
How to automatically install Ansible Galaxy roles?
... you would like to further automate it then, you can create a simple shell script that will run the two commands.
For example (ansible.sh):
./ansible.sh
ansible-galaxy install -r requirements.yml
ansible-playbook playbook.yml -i inventory
...
Cython: “fatal error: numpy/arrayobject.h: No such file or directory”
... In your case, try running these commands in IPython or in a normal Python script:
import numpy
import pyximport
pyximport.install(setup_args={"script_args":["--compiler=mingw32"],
"include_dirs":numpy.get_include()},
reload_support=True)
import my_p...
HTML text input allow only numeric input
...ents below refer to an old version which messed around with keycodes.
JavaScript
Try it yourself on JSFiddle.
You can filter the input values of a text <input> with the following setInputFilter function (supports Copy+Paste, Drag+Drop, keyboard shortcuts, context menu operations, non-typeab...
How do I determine k when using k-means clustering?
... and keep removing centroids (reducing k) until it no longer reduces the description length. See "MDL principle for robust vector quantisation" by Horst Bischof, Ales Leonardis, and Alexander Selb in Pattern Analysis and Applications vol. 2, p. 59-72, 1999.
Finally, you can start with one cluster,...