How can you check if a variable is a string in JavaScript?

General Discussions
, ,
4

Hi @archna.vv!!!

Sometimes people use **Object.prototype.toString.call()** to check types in a more robust way, especially for very specific scenarios:

if (Object.prototype.toString.call(a_string) === '[object String]') {
  // definitely a string
}

This method can be particularly handy if you want to explicitly avoid tricky edge cases where typeof or instanceof might not give the full picture for built-in objects. However, for most common uses, typeof is often sufficient.

I assure you, this addition to your JavaScript toolbox would be helpful. Thank you