100. JSON.parse - Complex

Implement a more complete version of JSON.parse that handles advanced cases including:

• Deeply nested structures (5+ levels)
• Complex string escaping (all escape sequences)
• Numbers (integers, floats, negative, zero, scientific notation)
• Mixed data types in arrays and objects
• Whitespace handling
• Complex nested structures

Given a JSON string, parse it and return the corresponding JavaScript value. Your implementation should handle all basic types and complex nested structures with proper error handling.

Requirements

1. Advanced Functionality

• Handle deeply nested structures (10+ levels)
• Properly unescape all special characters and escape sequences
• Handle all number formats (integers, floats, negative, zero, scientific notation)
• Preserve object key order
• Handle mixed types in arrays
• Proper whitespace handling
• Better error messages

Example Usage

parse('{"a":{"b":{"c":{"d":{"e":1}}}}}');  // Deep nesting
parse('"text with \"quotes\" and \\backslashes"');  // Complex escaping
parse('[1,"two",true,null,{"x":1}]');      // Mixed types
parse('{"0":"zero","1":"one"}');            // Numeric keys

Real-World Context

This problem models real JSON parsing in production:

• Complex API responses: Parse deeply nested API data
• Configuration parsing: Load complex JSON configurations
• Data deserialization: Restore complex application state
• Cross-system communication: Parse JSON from different systems