Mastering Blockchain Programming with Solidity

Selecting the environment to connect with

Using the Environment drop-down menu, you can choose the environment to connect your Remix instance. The Remix IDE supports connecting with three environments:

• JavaScript VM: The Remix IDE itself, to some extent, behaves like a blockchain. If your contracts are simple and can be run inside the browser, you would be able to deploy and test your contract using the VM provided by the browser itself. Using the JavaScript VM is fast and easy; however, it does not work with complex deployment.
• Injected Web3: Plugins such as MetaMask have integration with the Remix IDE. Using this environment, you can connect your MetaMask account with Remix. As you can see in the preceding screenshot, it is connected with ...