JavaScript Fundamentals for Professionals
Fast-track your coding skills with practical JavaScript for business applications
1Step 1: Variables and Data Types for Business Applications
In professional settings, JavaScript is often used to track and manage business data. Let's start by learning how to use variables and data types effectively for business applications.
Key Business-Oriented Data Types:
const- For values that shouldn't change (company name, tax rates)let- For values that will change (revenue, inventory levels)Arrays- For collections of related items (products, team members)Objects- For structured data (customer profiles, project details)
Let's practice by creating variables to track business metrics:
JavaScript
// Create variables to track business metrics// 1. Create a const for your company name// 2. Create a let for current quarter revenue// 3. Create an array of your top 3 products/services// 4. Create an object with company data// 5. Use console.log to display this information// Your code here
Output
Career Application:
In professional settings, you'll often need to track business metrics like revenue, customer data, and product information. Using the appropriate variable types makes your code more maintainable and less prone to errors.