03. Points Validation

function pointsValidation(arr) {
    let x1 = arr[0];
    let y1 = arr[1];
    let x2 = arr[2];
    let y2 = arr[3];

    let checkFirst = firstPoint(arr);
    let checkSecond = secondPoint(arr);
    let checkThird = thirdPoint(arr);

    function firstPoint() {
        return Math.sqrt(Math.pow(x1, 2) + Math.pow(y1, 2));
    }

    function secondPoint() {
        return Math.sqrt(Math.pow(x2, 2) + Math.pow(y2, 2));
    }

    function thirdPoint() {
        return Math.sqrt(Math.pow(Math.abs(x2 - x1), 2) + Math.pow(Math.abs(y2 - y1), 2));
    }
    console.log(`{${x1}, ${y1}} to {0, 0} is ${checkFirst === Math.trunc(checkFirst) ? 'valid' : 'invalid'}`);
    console.log(`{${x2}, ${y2}} to {0, 0} is ${checkSecond === Math.trunc(checkSecond) ? 'valid' : 'invalid'}`);
    console.log(`{${x1}, ${y1}} to {${x2}, ${y2}} is ${checkThird === Math.trunc(checkThird) ? 'valid' : 'invalid'}`);

}