$('#plus').on('click', (event) => {
const newVal = parseInt(document.querySelector('#stpnum').value) + 1;
document.querySelector('#stpnum').value = newVal;
const step = newVal;
$('#sub').before(`
`)
});
$('#minus').on('click', (event) => {
const newVal = parseInt(document.querySelector('#stpnum').value) - 1;
document.querySelector('#stpnum').value = newVal;
const step = newVal;
const toRm = step + 1;
for(i = 0; i < 6; i++) {
$(`#added${toRm}`).remove();
}
});