https://github.com/mosnad-web01/abdulmajeed-phase-1-scope-lab

https://mosnad-web01.github.io/Abdulmajeed-phase-1-scope-lab/
https://github.com/mosnad-web01/abdulmajeed-phase-1-scope-lab

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https://mosnad-web01.github.io/Abdulmajeed-phase-1-scope-lab/

• Host: GitHub
• URL: https://github.com/mosnad-web01/abdulmajeed-phase-1-scope-lab
• Owner: Mosnad-Web01
• License: other
• Created: 2024-08-19T05:23:36.000Z (5 months ago)
• Default Branch: main
• Last Pushed: 2024-08-19T05:26:19.000Z (5 months ago)
• Last Synced: 2024-08-19T06:36:36.929Z (5 months ago)
• Language: JavaScript
• Homepage: https://mosnad-web01.github.io/Abdulmajeed-phase-1-scope-lab/
• Size: 52.7 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE.md

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README

        
https://mosnad-web01.github.io/Abdulmajeed-phase-1-scope-lab/

# Scope Lab

## Learning Goals

- Understand how functions determine scope in JavaScript

## Introduction

Scuber's drivers are beginning to take down some notes about their customers.

Use your knowledge of scope to access and change some of these variables.

## Instructions

A word of warning. In this lab, you will practice doing some bad things. For

example, we'll ask you to declare variables in global scope, and write functions

that break down. You'll also need to use `var` to declare all variables except

when specifically instructed otherwise. We do this because, by testing the

limits and exposing the underbelly of a language, you can better understand it

and know what to avoid in the future.

**Fork and clone** this lab into your local environment. Navigate into its

directory in the terminal, then run `code .` to open the files in Visual Studio

Code.

Ok, these are your tasks:

- `customerName`: Declare a variable in global scope called `customerName` using

  the `var` keyword and assign it the value `'bob'`.

- `upperCaseCustomerName()`: Write a function that accesses that global

  `customerName` variable, and uppercases it.

- `setBestCustomer()`: Write a function that when called, declares a variable

   called `bestCustomer` in global scope and assigns it to be `'not bob'`. (Poor

   Bob.) Also, poor us, declaring a global variable from inside a function is

   one of those things we would never want to do normally, but is good for us to

   explore right now.

- `overwriteBestCustomer()`: See the consequences of declaring a variable in

   global scope, by writing a new function called `overwriteBestCustomer()` that

   changes that `bestCustomer` variable to `'maybe bob'`.

- `leastFavoriteCustomer` and `changeLeastFavoriteCustomer()`: Now declare a

  constant (using the `const` keyword) in global scope called

  `leastFavoriteCustomer`; be sure to assign it some initial value. Finally,

  write a function called `changeLeastFavoriteCustomer()` that attempts to

  change that constant - notice what JavaScript does when you try to change the

  constant.

When you're done, remember to commit and push your changes up to GitHub, then

submit your work to Canvas using CodeGrade.