How to Solve 'Uncaught SyntaxError: Unexpected token o' When Parsing JSON with jQuery?

Troubleshooting "Uncaught SyntaxError: Unexpected token o" in JavaScript

When working with JSON and JavaScript, it's crucial to ensure proper syntax and data handling. Unfortunately, developers commonly encounter the error "Uncaught SyntaxError: Unexpected token o" while attempting to parse JSON data.

Suppose you encounter this error when trying to load a JSON file containing vocabulary data into a table. One line of your code works initially, but the error persists even after removing the rest of the code. Here's how to resolve this issue:

The Issue:

The error stems from jQuery's automatic assumption of the data type in this case as JSON. Even though you're using jQuery.get(), since no dataType option is specified, jQuery guesses the type based on the URL's extension (in this case, .json). As a result, when you subsequently attempt to parse the data with JSON.parse(), a "SyntaxError" occurs because you're essentially trying to double-parse JSON data.

The Solution:

To fix the error, specify the data type explicitly in jQuery's get() method. Here's the corrected code:

jQuery.get('wokab.json', function(data) {
    var glacier = JSON.parse(data);
}, 'json');

By adding the 'json' argument, you're explicitly instructing jQuery to treat the incoming data as JSON, preventing the automatic parsing and subsequent "SyntaxError" when you parse it manually.

Additional Notes:

• Ensure that your JSON file is properly formatted and contains valid JSON syntax.
• Double-check that the file path and name in jQuery.get() are accurate.
• Verify that you're accessing the correct JSON properties in your subsequent code.

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