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What is the parameters in arroy function?


Den356
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Hello everyone,

please help the newbie figure it out.

There is such a JS code.

function makeDouble (x) {

return x * 2; }

var doMath = (x, func) => func(x + 5);
var num = 5;

The task is this:
Using only makeDouble, doMath, and num, make the value of num equal to 20.

num = _____________________________________________________

I can’t understand why there are two parameters in the arrow function, but in the body of this function itself there is only one parameter. What am I doing wrong?

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