What do Square Brackets [] Mean in JavaScript?

What does this symbol mean in JavaScript?

Square brackets: [ ]

Meaning: Array notation

Usage:

const arr = [1, 2, 3]; // Create an array

console.log(arr[1]); // Access the second element (0-indexed)

Other relevant links:

• [The MDN documentation on arrays](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)
• [Another Stack Overflow question about square brackets in JavaScript](https://stackoverflow.com/questions/9834703/array-creation-in-javascript)

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