<|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
Construct a While Loop in JavaScript.
<|im_end|>
<|im_start|>assistant
let i = 0; 
while (i < 10) { 
   console.log(i); 
   i++; 
}<|im_end|>
