How to pass a variable to page.evaluate?

Question

JavaScript

An example that works:

five = 5
page.evaluate(function(val) {
        return val;
},five).then(function(num){
        console.log(num)
});

But I need to specify an already existing function in page.evaluate . How can I pass a variable to it?

five = 5
page.evaluate(test(five),five).then(function(num){
        console.log(num)
});

function test(num) {
        return num;
}

It doesn't work anymore

Answer 1

page.evaluate(test, five).then(function(num) {
    console.log(num)
});