I got you

Fetch()

it's a function in JavaScript (and some other languages) for interacting with a database, especially with APIs (Application Programming Interface). These interactions include acquiring/pulling/fetching data, uploading data, editing data, and deleting data.

Since API is a loaded term and I'm not sure how familiar with computer science you are let's think of it like meal prepping. When you meal prep you create a large portion of a meal that you can pull from into any meal you feel like making that day. An API is similar in nature. An API is created by developers with code or processes they expect to need down the road.

For example if I want to pull data from a database I would create an API that allowed me to just pull from the database. Now that I've created an API to pull from the database other developers can use my API in their programs to pull from the database without having to reinvent what I just made. It saves time just like meal prepping.

Hope this answered the things!

Edit: changed some commas to slashes /