🔧 Fixing JSON Validation & Syntax Errors

Example Error & Fix

{
  "name": "DevSuite",
  "version": 1.0,
  "features": ["formatting", "validation",],
}

{
  "name": "DevSuite",
  "version": 1.0,
  "features": ["formatting", "validation"]
}

💡 Explanation: Remove trailing commas inside arrays and objects to adhere to strict RFC 8259 rules.

Common Root Causes

• Trailing commas present after the last element in arrays or objects.
• Unquoted object keys or keys surrounded by single quotes instead of standard double quotes.
• Unescaped control codes or line breaks within string quotes.

Recommended Solutions

• Strip trailing commas before passing payloads to JSON.parse().
• Ensure all object keys use double quotes ("key").
• Escape special characters inside strings (e.g. \n for newlines).