Arrays and Array Operations
Explore JavaScript arrays and learn to organize multiple data values efficiently. Build a meal calorie tracker by creating, adding, removing, and analyzing meals using array methods like push, pop, and includes. Understand looping through arrays to calculate totals, averages, and find maximum values, preparing you to build practical web applications.
The project
You’ve started eating healthier and want a simple way to track your meals. Instead of jotting them down randomly and losing track, you’ll build a small system that can:
Store the meal names: Breakfast, Lunch, Dinner, and Snacks.
Record the calories for each meal.
Calculate your daily total.
Add everything up for the week.
Typing just:
Breakfast: 400Lunch: 600
It is helpful, but it doesn’t give you the full picture. What you need is an array, a way to organize multiple values together so you can calculate and analyze them easily.
Your project: Build a healthy meals tracker that organizes meals by calories, shows your daily totals, and then adds them up for the week.
The programming concept
Would you rather:
Use a separate variable for each meal (
breakfastCalories,lunchCalories,dinnerCalories), orPut them into a single array you can add to or update?
Which seems ...