$(function () {
xmlhttp = new XMLHttpRequest()
xmlhttp.open("GET", "mysql.php?p=getfullstats", true);
xmlhttp.send();
xmlhttp.onreadystatechange = function () {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
var jsontext = xmlhttp.responseText;
var json = JSON.parse(jsontext);
if (jsontext == '[]') {
return false
} else {
var newTr = '';
for (var i = 0; i < json.length; i++) {
newTr += (' / ' + json[i].date + ' ' + json[i].price);
// parse a date in dd-mm-yyyy
function parseDate(input) {
var parts = input.match(/(\d+)/g);
// new Date(year, month [, date [, hours[, minutes[, seconds[, ms]]]]])
return new Date(parts[2], parts[1] - 1, parts[0]); // months are 0-based
}
// get sum of prices for given month
function getSumForMonth(data, month) {
var sum = 0;
month -= 1; // months are 0-based
$.each(data, function (idx, item) {
if (parseDate(item.date).getMonth() == month) {
sum += parseFloat(item.price);
}
});
return sum;
}
var sum = getSumForMonth(json, 9); // sum for september
console.log(sum);
}
}
}
}
});