The Bankist App

In this project, I have been applied to build-in array methods in JavaScript. The thing is When do I have to apply methods on arrays?

Name		Name	Last commit message	Last commit date
Latest commit History 1 Commit
.prettierrc		.prettierrc
Bankist-flowchart.png		Bankist-flowchart.png
README.md		README.md
icon.png		icon.png
index.html		index.html
logo.png		logo.png
script.js		script.js
style.css		style.css