avalanche-cli VS avalanchejs

Avalanche-CLI: This is a command-line gives developers access to everything Avalanche. It specializes in helping developers develop andnets. GitHub | Docs

The first step of learning Subnet development is learning to use Avalanche-CLI.

Some more tools, like the Avalanche CLI, can be found on their official Github Repo.

Avalanche-CLI installed

AJS: A JavaScript Library for interfacing with the Avalanche platform. GitHub

Link to github

Transactions are created by users which call an API on the AvalancheGo full node or create them using a library such as AvalancheJS. Vertices are created when nodes batch incoming transactions together or when accepted transactions from a rejected vertex get reissued and added to the DAG. A vertex's parents are chosen from the virtuous frontier, which are the nodes at the tip of the DAG with no conflicts. It's important to build on virtuous vertices because if we built on non-virtuous vertices there would be a higher chance that the node would get rejected which means there's a higher chance it's ancestors get rejected and we would make less progress.