event-attendance #

Match provided email on an application with ones who filled out an event attendance form

Install Deno #

https://docs.deno.com/runtime/getting_started/installation/

Usage #

deno run -A main.ts --event_path=<event.csv> --applications_path=<app.csv>

About #

For this project, I used TypeScript and the Deno runtime

Testing #

deno test

What did I learn from this project? #

• “top-level async” is when you have an async in main
• Using the .split() method is the same as Python
• You can .pop() an array, and it’ll remove the last item like in Rust
• Using a forEach is useful
• All async functions return a Promise<Type>
• You need to --allow-read={filename} to allow reads to files
• You can use assertThrows to test if a function correctly throws and Error
• Use slice to get a piece of an array like you would with [i:j] in Python
• Sets can contain strings but you need to create them with new Set<string>([]);
• Sets with strings to not have the .intersection method unfortunately