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Resolving javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path
... the expression and I found, this issue occurs when a server changes their HTTPS SSL certificate, and our older version of java doesn’t recognize the root certificate authority (CA).
• If you can access the HTTPS URL in your browser then it is possible to update Java to recognize the root CA.
...
How should I write tests for Forms in Django?
...
https://docs.djangoproject.com/en/stable/topics/testing/tools/#django.test.SimpleTestCase.assertFormError
from django.tests import TestCase
class MyTests(TestCase):
def test_forms(self):
response = self.client.p...
How can I use MS Visual Studio for Android Development?
...eeding to install Visual Studio. For more details see
Visuals Studio 2015
https://www.visualstudio.com/en-us/downloads/visual-studio-2015-downloads-vs
Visual Studio Emulator
https://www.visualstudio.com/en-us/features/msft-android-emulator-vs.aspx
Video of features https://channel9.msdn.com/Event...
How can I update NodeJS and NPM to the next versions?
... ever a bug in the update command.) In those cases, you can do this:
curl https://www.npmjs.com/install.sh | sh
To update Node.js itself, I recommend you use nvm, the Node Version Manager.
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How do you delete an ActiveRecord object?
...on condition
threshold_age = 20
User.where(age: threshold_age).delete_all
https://www.rubydoc.info/docs/rails/ActiveRecord%2FNullRelation:delete_all
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HTML/Javascript change div content
...s and firefox (3x faster than chrome!)
You can test it in your machine: https://jsperf.com/js-jquery-html-content-change
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std::back_inserter for a std::set?
...n 2016 there was a proposal to have a "single argument inserter iterator".
https://isocpp.org/files/papers/p0471r0.html . I couldn't find if it the proposal advanced. I think it makes sense.
For now you can have this behavior defining the maker function:
template<class Container>
auto sinser...
PHP server on local machine?
...;
And then run the command
php -S 127.0.0.1:8000 router.php
References:
https://www.php.net/manual/en/features.commandline.webserver.php
https://www.php.net/manual/en/features.commandline.options.php
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Aligning a float:left div to center?
...
Perhaps this what you're looking for - https://www.w3schools.com/css/css3_flexbox.asp
CSS:
#container {
display: flex;
flex-wrap: wrap;
justify-content: center;
}
.block {
width: 150px;
height: ...
What is the difference between sites-enabled and sites-available directory?
...te
configured by it will be active once Apache2 is restarted.
See here https://help.ubuntu.com/lts/serverguide/httpd.html
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