How To Install libjs-cssrelpreload on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libjs-cssrelpreload on Ubuntu 18.04.
What is libjs-cssrelpreload
libjs-cssrelpreload is:
This JavaScript library provides functions to load CSS asynchronously.
Referencing CSS stylesheets with link[rel=stylesheet] or @import causes browsers to delay page rendering while a stylesheet loads. When loading stylesheets that are not critical to the initial rendering of a page, this blocking behavior is undesirable. The new standard enables loading stylesheets asynchronously, without blocking rendering, and loadCSS provides a JavaScript polyfill for that feature to allow it to work across browsers, as well as providing its own JavaScript method for loading stylesheets.
There are three methods to install libjs-cssrelpreload on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install libjs-cssrelpreload Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libjs-cssrelpreload using apt-get by running the following command:
sudo apt-get -y install libjs-cssrelpreload
Install libjs-cssrelpreload Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libjs-cssrelpreload using apt by running the following command:
sudo apt -y install libjs-cssrelpreload
Install libjs-cssrelpreload Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install libjs-cssrelpreload using aptitude by running the following command:
sudo aptitude -y install libjs-cssrelpreload
How To Uninstall libjs-cssrelpreload on Ubuntu 18.04
To uninstall only the libjs-cssrelpreload package we can use the following command:
sudo apt-get remove libjs-cssrelpreload
Uninstall libjs-cssrelpreload And Its Dependencies
To uninstall libjs-cssrelpreload and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libjs-cssrelpreload
Remove libjs-cssrelpreload Configurations and Data
To remove libjs-cssrelpreload configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libjs-cssrelpreload
Remove libjs-cssrelpreload configuration, data, and all of its dependencies
We can use the following command to remove libjs-cssrelpreload configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libjs-cssrelpreload
References
Summary
In this tutorial we learn how to install libjs-cssrelpreload package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
