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What is the output of the following JavaScript code (let example)?

31. What is the output of the following JavaScript code (let example)?

<script>
	let a = 10;
	let a = 0;
</script>

1. 10
2. 0
3. SyntaxError
4. TypeError

Answer: C) SyntaxError

Explanation:

The output of the above JavaScript code is: "SyntaxError: 'a' has already been declared".