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Replace transparency in PNG images with white background
....
-alpha remove -alpha off (not needed with JPG)
See documention: http://www.imagemagick.org/Usage/masking/#remove
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My docker container has no internet
...es from daemon.json.
2. Fix the hosts's /etc/resolv.conf
A. Ubuntu 16.04 and earlier
For Ubuntu 16.04 and earlier, /etc/resolv.conf was dynamically generated by NetworkManager.
Comment out the line dns=dnsmasq (with a #) in /etc/NetworkManager/NetworkManager.conf
Restart the NetworkManager...
How do I programmatically click a link with javascript?
... can do that by simply doing this in Javascript :
location.href = "http://www.example.com/test";
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Google Maps: Auto close open InfoWindows?
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From this link http://www.svennerberg.com/2009/09/google-maps-api-3-infowindows/:
Teo: The easiest way to do this is to
just have one instance of the
InfoWindow object that you reuse over
and over again. That way when you
click a new m...
Android studio Gradle build speed up
...aemon=true
source on why the daemon setting makes builds faster:
https://www.timroes.de/2013/09/12/speed-up-gradle/
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How do I pause my shell script for a second before continuing?
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Run multiple sleeps and commands
sleep 5 && cd /var/www/html && git pull && sleep 3 && cd ..
This will wait for 5 seconds before executing the first script, then will sleep again for 3 seconds before it changes directory again.
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“There was an error while performing this operation”
...d web platform installer from MS and installed URL rewrite module.
http://www.microsoft.com/web/downloads/platform.aspx
Wish IIS errors were more informative than just "There was an error..."
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How do I rename a column in a SQLite database table?
...N fails with an error and no changes are applied.
Image source: https://www.sqlite.org/images/syntax/alter-table-stmt.gif
Example:
CREATE TABLE tab AS SELECT 1 AS c;
SELECT * FROM tab;
ALTER TABLE tab RENAME COLUMN c to c_new;
SELECT * FROM tab;
db-fiddle.com demo
Android Support
As of...
What is a dependency property?
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The only explanation I found helpful and well written is this one: http://www.wpftutorial.net/dependencyproperties.html
Basically, DependencyProperties differ from regular properties in that they're not just setters / getters for fields in the class, but they retrieve their actual values dynamical...
A html space is showing as %2520 instead of %20
...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...