JavaScript Fundamentals · Final Project · Lesson 46 of 48
Planning Your Project
Concept
Planning Your Project
Before writing code, sketch what your project does, what data it needs, and which functions you will build.
Spending ten minutes planning on paper, or in comments, before touching real code usually saves far more than ten minutes of confused rewriting later.
By the end of this lesson
- Explain the core idea behind Planning Your Project.
- Predict output before running a change.
- Test one realistic and one unusual input.
- Use the result to make the next decision.
How to study this page
- 1. Read one concept.
- 2. Change the example.
- 3. Run, compare, and explain.
- 4. Complete the challenge below.
Syntax
// Plan template:
// Input: what data comes in
// Process: what functions transform it
// Output: what the user seesExampleRunnable
// Project: Simple grade calculator
// Input: array of scores
// Output: average and letter gradeSelf-check before continuing
Without looking at the example, describe what changes when you modify one input in Planning Your Project. Then reopen the editor and prove your explanation with a small test.
You are ready to continue when you can predict, test, and explain the result.
Your turn
Write your own project plan as comments for a small app of your choice.
Loading editor…
Console