This JavaScript function defines a function called `add` that takes two arguments, `a` and `b`. It returns their sum. The code then calls the `add` function with the arguments 2 and 3, resulting in 5.
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:
Explain this JavaScript function.

### Input:
`javascript
function add(a, b) {
    return a + b;
}
add(2, 3);
`

### Response:
This JavaScript function defines a function called `add` that takes two arguments, `a` and `b`. It returns their sum. The code then calls the `add` function with the arguments 2 and 3, resulting in 5.<|im_end|>