MODULE 3 · Control flow and functions

Functions

Functions

Functions let you give a repeated operation a clear name, inputs, and result. This makes code easier to test and reuse.

Learning objectives

• Define a function with parameters
• Return a useful result

Package a repeated action into a named, testable unit. Focus on explaining each decision in your own words before relying on a pattern or shortcut.

Example

function formatGreeting(name) {
  return `Hello, ${name}!`;
}
console.log(formatGreeting("Asha"));

Summary

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