How To Install eslint on Ubuntu 20.04
Introduction
In this tutorial we learn how to install eslint on Ubuntu 20.04.
What is eslint
eslint is:
ESLint is a tool for identifying and reporting on patterns found in ECMAScript/JavaScript code. In many ways, it is similar to JSLint and JSHint with a few exceptions:
- ESLint uses Espree for JavaScript parsing
- ESLint uses an AST to evaluate patterns in code
- ESLint is completely pluggable, every single rule is a plugin and you can add more at runtime
Some uses of ESLint require additional packages:
- Use of parsers other than the default (Espree) require that parser, e.g. node-babel-eslint, node-esprima, or node-esprima-fb.
- Output format “code-frame” requires node-babel-code-frame.
- Output format “table” requires node-table and node-pluralize.
There are three methods to install eslint on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install eslint Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install eslint using apt-get by running the following command:
sudo apt-get -y install eslint
Install eslint Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install eslint using apt by running the following command:
sudo apt -y install eslint
Install eslint 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 eslint using aptitude by running the following command:
sudo aptitude -y install eslint
How To Uninstall eslint on Ubuntu 20.04
To uninstall only the eslint package we can use the following command:
sudo apt-get remove eslint
Uninstall eslint And Its Dependencies
To uninstall eslint and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove eslint
Remove eslint Configurations and Data
To remove eslint configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge eslint
Remove eslint configuration, data, and all of its dependencies
We can use the following command to remove eslint configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge eslint
References
Summary
In this tutorial we learn how to install eslint package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
