JavaScript Foundations·Practice drills 7

Drill 10: Why this way — Dates and numbers

Explain why the example is written this way rather than another way.

Beginner 5 min read Lesson 167 of 480 Challenge included
What you will be able to do
  • Explain why the example is written this way rather than another way.

Practice task

Explain why the example is written this way rather than another way.

dates.jsJavaScript
const now = new Date();
console.log(now.getFullYear());

const start = new Date("2024-01-01");
const end = new Date("2024-01-08");
const diffMs = end - start;
const diffDays = diffMs / (1000 * 60 * 60 * 24);
console.log(diffDays);

const money = new Intl.NumberFormat("en-US", {
  style: "currency",
  currency: "USD"
});
console.log(money.format(1234.5));

console.log(0.1 + 0.2);
const price = (0.1 + 0.2).toFixed(2);
console.log(price);
Your turn

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Explain why the example is written this way rather than another way.

TEXT · starter
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Lesson 167 of 480 · 0% of course