How to Fix Unexpected Token Error in JavaScript

If you're new to JavaScript, you may have seen an error message like `Unexpected token` when running your code. This error can be confusing because it doesn't always explain exactly what went wrong. In this article, we'll explain what this error means, common reasons why it happens, and how you can fix it.

The `Unexpected token` error means that JavaScript found a character (or "token") where it wasn't expecting one. This usually happens due to a typo, missing punctuation, or incorrect syntax. For example, it can occur if you forget to close a string with quotes, if a bracket is missing, or if you write invalid characters.

let name = 'Alice;
console.log(name);

In the code above, we forgot to close the string with an ending quote after `'Alice`. JavaScript sees the semicolon inside what it thinks is the string and throws an `Unexpected token` error because it finds something unexpected inside the string. To fix it, make sure all strings are properly closed with matching quotes, like this:

let name = 'Alice';
console.log(name);

Other common causes for this error include missing commas between items in an array or object, leftover or extra punctuation, or using reserved words incorrectly. Always check the line mentioned in the error message and look for typos or missing syntax. Fixing those mistakes will help your code run smoothly.