What a function is

Write once, use often

Your family's chiya recipe lives on a card. Whenever someone wants tea, they don't reinvent it — they follow the card. A function is a recipe card for code: write the steps once, then use them by name whenever you like.

Defining and calling

function makeChiya() {
  console.log("Boil water and milk");
  console.log("Add tea leaves and spices");
  console.log("Strain and serve ☕");
}

makeChiya();
makeChiya();

Name functions with a verb: makeChiya, showMenu, greetUser. They do things.

Write once, use often

Defining and calling

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