# Pass a number as a parameter in JavaScript

Now let's not store the number that the passed function does something with inside `test`, but pass it as the first parameter:

`function test(num, func) { // the first parameter is a number console.log(func(num)); }`

Let's use our function:

`function test(num, func) { console.log(func(num)); } // Shows 4: test(2, function(num) { return num * num; });`

For the convenience of our construction: we have one function `test` that takes a number as a parameter. But what will happen to the number is not hardcoded in the `test` function.

We can, for example, use the second parameter of the function `test` to pass a squaring function, or we can, for example, cube function:

`function test(num, func) { console.log(func(num)); } // Find the square of a number: test(2, function(num) { return num * num; // returns a square }); // Find the cube of a number: test(2, function(num) { return num * num * num; // returns a cube });`

Let the function `test` take a number as the first parameter, and functions as the second and third parameters that also take numbers. Let the function `test` return the sum of the results of the passed functions:

`function test(num, func1, func2) { return func1(num) + func2(num); }`

Invoke the function `test`, passing the number `3` as the first parameter, the function that squares the number as the second parameter, and the function that raises the number to the cube as the third parameter. Output the result to the console.

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