form-checker

function checkIfFormIsFullyFilled() {
    console.log('button clicked');

    let formInputs = form.elements;
    // using spread operator on HTMLFormControlsCollection
    [...formInputs].forEach(input => {
        // console.log(input);
        if (input.value == '') {
            warning.style.display = 'block';
        } else {
            getValuesAndPlotChart();
        }
    });
}