Beginner: Math.min possible within a JS function? [duplicate]

I am trying to write a function that finds the smallest integer of an array, and was hoping that it would be as easy as dropping a Math.min() in there.

However, after looking this up and playing around with a few things, I cannot for the life of me figure out what the parameters are supposed to be.

The below was my first stab. I am aware that some methods dont require parameters (well I think I know, im a complete beginner)

/* function findSmallestInteger(arr) {
    const newArr = arr.Math.min();
    return newArr
}

Than this was my second.

function findSmallestInteger(func, arr) {
    return arr.Math.min(arr)
}

I would like the function output to take an array and simply spit out the smallest integer in that array.

Any pointers are much appreciated