This a function coverts an Html Table (just give the id) and it returns an array of the table :
function table_to_array(table_id) {
myData = document.getElementById(table_id).rows
//console.log(myData)
my_liste = []
for (var i = 0; i < myData.length; i++) {
el = myData[i].children
my_el = []
for (var j = 0; j < el.length; j++) {
my_el.push(el[j].innerText);
}
my_liste.push(my_el)
}
return my_liste
}
I hope it helps you !