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Bootstrap: align input with button
... aligned using the input-group-prepend and input-group-append classes (see https://getbootstrap.com/docs/4.0/components/input-group/#button-addons)
Group button on the left side (prepend)
<div class="input-group mb-3">
<div class="input-group-prepend">
<button class="btn btn-o...
How to check if a user is logged in (how to properly use user.is_authenticated)?
...request.auth:
# Only for authenticated users.
For more info visit https://www.django-rest-framework.org/api-guide/requests/#auth
request.user.is_authenticated() has been removed in Django 2.0+ versions.
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How is std::function implemented?
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Optimal way to concatenate/aggregate strings
...e SQL Database:
STRING_AGG() in PostgreSQL, SQL Server 2017 and Azure SQL
https://www.postgresql.org/docs/current/static/functions-aggregate.html
https://docs.microsoft.com/en-us/sql/t-sql/functions/string-agg-transact-sql
GROUP_CONCAT() in MySQL
http://dev.mysql.com/doc/refman/5.7/en/group-by-f...
Can I use a min-height for table, tr or td?
...n-height: 100px;
}
Table cells will grow when the content does not fit.
https://jsfiddle.net/qz70zps4/
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What is the syntax to insert one list into another list in python?
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How to give Jenkins more heap space when it´s started as a service under Windows?
...natory. Tweak the arguments
for example to give JVM a bigger
memory.
https://wiki.jenkins-ci.org/display/JENKINS/Installing+Jenkins+as+a+Windows+service
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Image fingerprint to compare similarity of many images
...ely take a look at phash.
For image comparison there is this php project :
https://github.com/kennethrapp/phasher
And my little javascript clone:
https://redaktor.me/phasher/demo_js/index.html
Unfortunately this is "bitcount"-based but will recognize rotated images.
Another approach in javascript wa...
Find unused npm packages in package.json
...
We can use the below npm module for this purpose:
https://www.npmjs.com/package/npm-check-unused
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PHP random string generator
... * For PHP 7, random_int is a PHP core function
* For PHP 5.x, depends on https://github.com/paragonie/random_compat
*
* @param int $length How many characters do we want?
* @param string $keyspace A string of all possible characters
* to select from
* @return str...