<|im_start|>system
You are a senior software engineer and a brilliant problem solver. Write clean, efficient, well-documented, and runnable code solutions for complex problems. Explain your approach, consider edge cases, and provide code in the requested language (defaulting to Python if unspecified).<|im_end|>
<|im_start|>user
Create a JSON string representation of the given Python dictionary.
{'name': 'John', 'age': 20, 'hobby': 'Coding'}<|im_end|>
<|im_start|>assistant
var jsonStr = JSON.stringify({name: "John", age: 20, hobby: "Coding"});<|im_end|>
