<|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
Develop a function to search for a value in an array and return its position.
arr = [25, 100, 98, 50];
value = 50<|im_end|>
<|im_start|>assistant
function searchValue(arr, value) {
	let position = -1;
	arr.forEach((n, i)=> {
		if (n == value) {
			position = i;
		}
	});
	return position;
}
let position = searchValue(arr, value);
console.log(position); // 3<|im_end|>
