What is the method to determine if a variable is an array in JavaScript?

Other Questions JavaScript
, ,
1

What approach can I use to verify if a variable is an array in JavaScript?

if (myVar.constructor === Array) { console.log('The variable is an array'); }
2

¡Saludos! If you’re diving into JavaScript and want to determine whether a variable is an array, there are plenty of methods available. How about trying the Array.isArray() method for a straightforward solution? Check this out:

if (Array.isArray(myVar)) {
  console.log('The variable is an array');
}

This approach is concise and reliable. Enjoy coding, and feel free to ask if you have more questions!

3

Hey there! Use this check:

if (Array.isArray(myVar)) console.log('Array detected!');
4

Hey, fellow coder! :rocket: If you’re scratching your head over whether a variable is an array in JavaScript, no worries! There’s a simple and modern approach you can try using Object.prototype.toString.call(). It’s a bit different from the common methods shared above but equally effective. Check out this example:

if (Object.prototype.toString.call(myVar) === '[object Array]') {
  console.log('Yep, it is indeed an array!');
}

This technique is quite versatile and can be used to check other data types too. I’ve found it handy when working with mixed data structures to ensure everything is sorted. If you have other queries or need more tips, I’m here to help! Happy coding! :smile: