This JavaScript code initializes two variables, `x` and `y`, with the values 5 and 10, respectively. It then prints their sum, `15`, to the console.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
What is the output of this JavaScript code?

### Input:
`javascript
let x = 5;
let y = 10;
console.log(x + y);
`

### Response:
This JavaScript code initializes two variables, `x` and `y`, with the values 5 and 10, respectively. It then prints their sum, `15`, to the console.<|im_end|>