JAVASCRIPT · ОСНОВЫ · LESSON 12

List of numbers

Massive · about 12 minutes

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STEP 1

One box for many

The array stores several values. Its boundaries are square brackets and the values are separated by commas.

const scores = [2, 4, 6];

Massif locations

0first1second2third

✦ scores has three numbers.

STEP 2

The length property tells you how many elements are inside an array.

const scores = [2, 4, 6];
console.log(scores.length);

✦ That's 3.

IN-CLASS PRACTICE

Type an example manually. Check the names, brackets and signs.

const numbers = [1, 3, 5];
console.log(numbers.length);

HOMEWORK

Create const nums as an array of 2, 4, 6, 8. Indicate its length through length.

The answer is hidden. Use similar examples from the lesson notes.