How to Check if Solidity is Installed

To check if Solidity is installed on your system, you can use the solcjs command line tool, which is the JavaScript-based compiler for Solidity.

solcjs --version

The command solcjs --version will print the version number of the installed Solidity compiler to the terminal. If Solidity is not installed, you will receive an error message indicating that the command was not found.

If you don’t have solcjs installed, you can download it using npm by running npm install -g solc in your terminal. This will install the latest version of the Solidity compiler and make the solcjs command available globally on your system.

It’s important to note that the version of the Solidity compiler you have installed will determine which version of the Solidity programming language you can use in your contracts. Ensure that the version you have installed supports the version of Solidity specified in your contracts.