Redraw a Google Chart from User Input
Validate numeric input before redrawing
Convert form values to numbers and reject non-finite values before rebuilding the chart data.
function readNumber(id) {
const value = Number(document.getElementById(id).value);
return Number.isFinite(value) ? value : 0;
}
const php = readNumber('php');
const mysql = readNumber('mysql');PHP
MySQL
Jquery
HTML
ASP
Chart Basics
Subhendu Mohapatra
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