Develop Reference

Blogger random post display to prevent no posts infinite loop

How can I get Blogger to display random posts, while preventing an infinite loop when there are no posts to display?
Here is my JavaScript code which I am attempting to use:
<script>
var dt_numposts = 10;
var dt_snippet_length = 100;
var dt_info = 'true';
var dt_comment = 'Comment';
var dt_disable = '';
var dt_current = [];
var dt_total_posts = 0;
var dt_current = new Array(dt_numposts);
function totalposts(json) {
dt_total_posts = json.feed.openSearch$totalResults.$t
}
document.write('<script type=\"text/javascript\" src=\"/feeds/posts/summary?max-results=100&orderby=published&alt=json-in-script&callback=totalposts\"><\/script>');
function getvalue() {
for (var i = 0; i < dt_numposts; i++) {
var found = false;
var rndValue = get_random();
for (var j = 0; j < dt_current.length; j++) {
if (dt_current[j] == rndValue) {
found = true;
break
}
};
if (found) {
i--
} else {
dt_current[i] = rndValue
}
}
};
function get_random() {
var ranNum = 1 + Math.round(Math.random() * (dt_total_posts - 1));
return ranNum
};
function random_list(json) {
a = location.href;
y = a.indexOf('?m=0');
for (var i = 0; i < dt_numposts; i++) {
var entry = json.feed.entry[i];
var dt_posttitle = entry.title.$t;
if ('content' in entry) {
var dt_get_snippet = entry.content.$t
} else {
if ('summary' in entry) {
var dt_get_snippet = entry.summary.$t
} else {
var dt_get_snippet = "";
}
};
dt_get_snippet = dt_get_snippet.replace(/<[^>]*>/g, "");
if (dt_get_snippet.length < dt_snippet_length) {
var dt_snippet = dt_get_snippet
} else {
dt_get_snippet = dt_get_snippet.substring(0, dt_snippet_length);
var space = dt_get_snippet.lastIndexOf(" ");
dt_snippet = dt_get_snippet.substring(0, space) + "…";
};
for (var j = 0; j < entry.link.length; j++) {
if ('thr$total' in entry) {
var dt_commentsNum = entry.thr$total.$t + ' ' + dt_comment
} else {
dt_commentsNum = dt_disable
};
if (entry.link[j].rel == 'alternate') {
var dt_posturl = entry.link[j].href;
if (y != -1) {
dt_posturl = dt_posturl + '?m=0'
}
var dt_postdate = entry.published.$t;
if ('media$thumbnail' in entry) {
var dt_thumb = entry.media$thumbnail.url
} else {
dt_thumb = "https://blogspot.com/"
}
}
};
document.write('<img alt="' + dt_posttitle + '" src="' + dt_thumb + '"/>');
document.write('<div>' + dt_posttitle + '</div>');
if (dt_info == 'true') {
document.write('<span>' + dt_postdate.substring(8, 10) + '/' + dt_postdate.substring(5, 7) + '/' + dt_postdate.substring(0, 4) + ' - ' + dt_commentsNum) + '</span>'
}
document.write('<div style="clear:both"></div>')
}
};
getvalue();
for (var i = 0; i < dt_numposts; i++) {
document.write('<script type=\"text/javascript\" src=\"/feeds/posts/summary?alt=json-in-script&start-index=' + dt_current[i] + '&max-results=1&callback=random_list\"><\/script>')
};
</script>
Expected output:
?
Actual output:
?
It looks like your post is mostly code; please add some more details.

It looks like you're trying to populate dt_current with dt_numposts = 10 elements. I modified getvalue() as follows, so that dt_numposts is capped at dt_total_posts, which may be 0. This allows the outer for loop to exit.
function getvalue() {
dt_numposts = (dt_total_posts < dt_numposts) ? dt_total_posts : dt_numposts;
// ...
I couldn't test this, because I don't have an example /feeds/posts/summary?max-results=100&orderby=published&alt=json-in-script&callback=totalposts JSON resource, but it works for zero posts. Whether is works for dt_numposts > 0, you'll need to test!

Date range for cash flows

I am trying to create a cash flow with dates.
I have 2 dates: Start and End
If payments are monthly and suppose the rent payment day is on 15th. Then the cashflow would :
10/15/2018
11/15/2018
12/15/2018
1/15/2019..... and so forth until the end date.
Similarly if rent is paid every 3 months then cashflow would look like:
10/15/2018 1/15/2018 4/15/2018... and so forth.
I have the following code which works every time except when the rent is on 1st day of the month or last day of the month.
function createLedger(stDate, etDate){
if (stDate && etDate) {
var d2 = new Date(etDate);
var sDay = d2.getUTCDate();
var sMonth = d2.getUTCMonth() + 1;
var sYear = d2.getUTCFullYear();
var endOfLeaseDate = sYear + "-" + sMonth + "-" + sDay;
var d3 = new Date(stDate);
var s1Day = d3.getUTCDate();
var s1Month = d3.getUTCMonth() + 1;
var s1Year = d3.getUTCFullYear();
var startOfLeaseDate = s1Year + "-" + s1Month + "-" + s1Day;
var ddlFrequency = document.getElementById("ddFrequency");
var selectedFrequency = ddlFrequency.options[ddlFrequency.selectedIndex].value;
if (selectedFrequency) {
if (selectedFrequency == "D") {
dates = dateRange(startOfLeaseDate, endOfLeaseDate);
}
Here is where the issue is:
else if (selectedFrequency == "Q") {
dates = getQuartersDateRange(d3, d2)
dates = SortedQuarter(d3,dates);
}
else {
dates = [];
}
}
else {
dates = [];
}
createFormElement();
}
}
And i have the following codes to get the date range and quarter range.
function getQuartersDateRange(startOfLeaseDate, endOfLeaseDate) {
var dates = [];
var qlist = listQuarters(startOfLeaseDate, endOfLeaseDate);
for (var i = 0; i < qlist.length; i++) {
var yearquarter = qlist[i].split('-');
var dateQ = new Date(yearquarter[0], (yearquarter[1] * 3 - 3) + 1, startOfLeaseDate.getUTCDate());
qDay = dateQ.getUTCDate();
qMonth = dateQ.getUTCMonth();
qYear = dateQ.getUTCFullYear();
var qDate = qYear + "-" + qMonth + "-" + qDay;
dates.push(qDate);
}
return dates;
}
function SortedQuarter(startOfLeaseDate, dates) {
var qdatesSorted = [];
for (var j = 0; j < dates.length; j++) {
var month;
var splitDate = dates[j].split('-');
if (j == 0)
month = startOfLeaseDate.getUTCMonth() + 1;
else {
startOfLeaseDate.setMonth(startOfLeaseDate.getUTCMonth() + 3)
month = startOfLeaseDate.getUTCMonth() + 1;
}
var qDate = splitDate[0] + "-" + month + "-" + splitDate[2];
qdatesSorted.push(qDate);
}
return qdatesSorted;
}
function listQuarters(sDate, eDate) {
if (sDate > eDate) {
var t = eDate;
eDate = sDate;
sDate = t;
}
sDate = new Date(sDate);
sDate.setDate(2);
var startQ = getQuarter(sDate);
var endQ = getQuarter(eDate);
var result = [startQ];
while (startQ != endQ) {
sDate.setMonth(sDate.getUTCMonth() + 3);
startQ = getQuarter(sDate);
result.push(startQ);
}
return result;
}
The issue here is that when the start date = 11/1/2018 and end date = 01/31/2020
the cashflow prints as follows
11/1/2018 3/1/2019 6/1/2019 9/1/2019 12/1/2019...and so forth. So instead of going from 11/1/2018 to 2/1/2018, it skips the month and goes to the next one. I am not sure why it does that only towards the end of the month or the beginning of the month.
Any help is appreciated. Thank you.

Using moment library worked for me. aLSO, I rewrote the date range as follows:
function createLedger(stDate, etDate) {
if (stDate && etDate) {
var endOfLeaseDate = moment(etDate, "MM/DD/YYYY");
var startOfLeaseDate = moment(stDate, "MM/DD/YYYY");
dateRange(startOfLeaseDate, endOfLeaseDate);
}
}
function dateRange(stDate, etDate) {
var dates = [];
var now = etDate.clone();
var day = etDate.date();
while(now.isAfter(stDate)) {
var month = now.clone().endOf("month");
if (now.date() < day && day <= month.date()) {
now.date(day);
}
dates.push(now.format("MM/DD/YYYY"));
//dates._reverse();
now = now.clone().subtract({"months": 1});
}
console.log(dates);
}
function RunLedgerAndPV() {
var stDate = "11/26/2018";
var etDate = "09/25/2019";
createLedger(stDate, etDate);
}
RunLedgerAndPV();

Calendar displays 24 hour clock and I need 12 hour clock

I have this e-calendar JavaScript code that is displaying 24hour clock format. How do you get it to change to 12 hour clock? Forgive the chopped up code, I had to delete some of it to create the post.
I have posted the code below:
(function ($) {
var eCalendar = function (options, object) {
// Initializing global variables
var adDay = new Date().getDate();
var adMonth = new Date().getMonth();
var adYear = new Date().getFullYear();
var dDay = adDay;
var dMonth = adMonth;
var dYear = adYear;
var instance = object;
var settings = $.extend({}, $.fn.eCalendar.defaults, options);
function print() {
loadEvents();
var dWeekDayOfMonthStart = new Date(dYear, dMonth, 1).getDay();
var dLastDayOfMonth = new Date(dYear, dMonth + 1, 0).getDate();
var dLastDayOfPreviousMonth = new Date(dYear, dMonth + 1, 0).getDate() - dWeekDayOfMonthStart + 1;
var cBody = $('<div/>').addClass('c-grid');
var cEvents = $('<div/>').addClass('c-event-grid');
var cEventsBody = $('<div/>').addClass('c-event-body');
cEvents.append($('<div/>').addClass('c-event-title c-pad-top').html(settings.eventTitle));
cEvents.append(cEventsBody);
var cNext = $('<div/>').addClass('c-next c-grid-title c-pad-top');
var cMonth = $('<div/>').addClass('c-month c-grid-title c-pad-top');
var cPrevious = $('<div/>').addClass('c-previous c-grid-title c-pad-top');
cPrevious.html(settings.textArrows.previous);
cMonth.html(settings.months[dMonth] + ' ' + dYear);
cNext.html(settings.textArrows.next);
cPrevious.on('mouseover', mouseOver).on('mouseleave', mouseLeave).on('click', previousMonth);
cNext.on('mouseover', mouseOver).on('mouseleave', mouseLeave).on('click', nextMonth);
cBody.append(cPrevious);
cBody.append(cMonth);
cBody.append(cNext);
for (var i = 0; i < settings.weekDays.length; i++) {
var cWeekDay = $('<div/>').addClass('c-week-day c-pad-top');
cWeekDay.html(settings.weekDays[i]);
cBody.append(cWeekDay);
}
var day = 1;
var dayOfNextMonth = 1;
for (var i = 0; i < 42; i++) {
var cDay = $('<div/>');
if (i < dWeekDayOfMonthStart) {
cDay.addClass('c-day-previous-month c-pad-top');
cDay.html(dLastDayOfPreviousMonth++);
} else if (day <= dLastDayOfMonth) {
cDay.addClass('c-day c-pad-top');
if (day == dDay && adMonth == dMonth && adYear == dYear) {
cDay.addClass('c-today');
}
for (var j = 0; j < settings.events.length; j++) {
var d = settings.events[j].datetime;
if (d.getDate() == day && (d.getMonth() - 1) == dMonth && d.getFullYear() == dYear) {
cDay.addClass('c-event').attr('data-event-day', d.getDate());
cDay.on('mouseover', mouseOverEvent).on('mouseleave', mouseLeaveEvent);
}
}
cDay.html(day++);
} else {
cDay.addClass('c-day-next-month c-pad-top');
cDay.html(dayOfNextMonth++);
}
cBody.append(cDay);
}
var eventList = $('<div/>').addClass('c-event-list');
for (var i = 0; i < settings.events.length; i++) {
var d = settings.events[i].datetime;
if ((d.getMonth() - 1) == dMonth && d.getFullYear() == dYear) {
var date = lpad(d.getDate(), 2) + '/' + lpad(d.getMonth(), 2) + ' ' + lpad(d.getHours(), 2) + ':' + lpad(d.getMinutes(), 2);
var item = $('<div/>').addClass('c-event-item');
var title = $('<div/>').addClass('title').html(date + ' ' + settings.events[i].title + '<br />');
var description = $('<div/>').addClass('description').html(settings.events[i].description + '<br />');
item.attr('data-event-day', d.getDate());
item.on('mouseover', mouseOverItem).on('mouseleave', mouseLeaveItem);
item.append(title).append(description);
eventList.append(item);
}
}
$(instance).addClass('calendar');
cEventsBody.append(eventList);
$(instance).html(cBody).append(cEvents);
}
return print();
}
$.fn.eCalendar = function (oInit) {
return this.each(function () {
return eCalendar(oInit, $(this));
});
};
}(jQuery));

getHours returns the range 0-23, so if it's greater than 11, subtract 12.
You could even get fancy and do like
(getHours() + 24) % 12 || 12

Line break TextNode javascript?

I am working on a simple project which is turning out to be difficult for some reason. First let me show you the result I am getting as of now; it's just this:
Leicester City vs Manchester United - 9/21 14:30
Now, I want to have the date and time on a separate line, however, every way I tried has failed me including \n, , document.createElement("br") and some unicode characters. I've really hit a brick wall this time. Any help is welcomed.
p.s.: I am only into my 3rd month of programming
This is my code:
function listEvents(feedRoot) {
var entries = feedRoot.feed.getEntries();
var eventDiv = document.getElementById('events');
if (eventDiv.childNodes.length > 0) {
eventDiv.removeChild(eventDiv.childNodes[0]);
}
var ul = document.createElement('p');
var len = entries.length;
for (var i = 0; i < len; i++) {
var entry = entries[i];
var title = entry.getTitle().getText();
var startDateTime = null;
var startJSDate = null;
var times = entry.getTimes();
if (times.length > 0) {
startDateTime = times[0].getStartTime();
startJSDate = startDateTime.getDate();
}
var entryLinkHref = null;
if (entry.getHtmlLink() != null) {
entryLinkHref = entry.getHtmlLink().getHref();
}
var dateString = (startJSDate.getMonth() + 1) + "/" + startJSDate.getDate();
if (!startDateTime.isDateOnly()) {
dateString += " " + startJSDate.getHours() + ":" +
padNumber(startJSDate.getMinutes());
}
var li = document.createElement('article');
if (entryLinkHref != null) {
entryLink = document.createElement('a');
entryLink.setAttribute('href', entryLinkHref);
entryLink.appendChild(document.createTextNode(title));
li.appendChild(entryLink);
li.appendChild(document.createTextNode(' - ' + dateString));
} else {
li.appendChild(document.createTextNode(title + ' - ' + dateString));
}
ul.appendChild(li);
}
eventDiv.appendChild(ul);
}

javascript function for calculating

I meet a trouble with a function. actually I need to make this function to perform a calculation on some text fields. When I worked on a single line no problems. But recently, someone asked to make a table with multiple lines (one line can be added dynamically) so, I do the following function so that it can not only duplicate line but id change all the fields concerned, so I add class to these fields. therefore I proceed as follows:
function clone(line) {
newLine = line.cloneNode(true);
line.parentNode.appendChild(newLine);
var tab = document.getElementsByClassName('libelle_debours')
var i = -1;
while (tab[++i]) {
tab[i].setAttribute("id", "_" + i);
};
var cab = document.getElementsByClassName('ht_no_tva')
var j = -1;
while (cab[++j]) {
cab[j].setAttribute("id", "_" + j);
};
var dab = document.getElementsByClassName('ht_tva')
var k = -1;
while (dab[++k]) {
dab[k].setAttribute("id", "_" + k);
};
var eab = document.getElementsByClassName('taux')
var l = -1;
while (eab[++l]) {
eab[l].setAttribute("id", "_" + l);
};
var fab = document.getElementsByClassName('tva')
var m = -1;
while (fab[++m]) {
fab[m].setAttribute("id", "_" + m);
};
}
function delRow() {
var current = window.event.srcElement;
//here we will delete the line
while ((current = current.parentElement) && current.tagName != "TR");
current.parentElement.removeChild(current);
}
The problem in fact is the second function that is used to make the calculation:
function calcdebours() {
var taux = document.getElementById('debours_taux_tva').value;
var ht_no_tva = document.getElementById('debours_montant_ht_no_tva').value;
var ht_tva = document.getElementById('debours_montant_ht_tva').value;
var tva = Math.round((((ht_tva) * (taux)) / 100) * 100) / 100;;
if (taux == '') {
taux = 0;
}
if (ht_no_tva == '') {
ht_no_tva = 0;
}
if (ht_tva == '') {
ht_tva = 0;
}
document.getElementById('debours_montant_tva').value = tva;
document.getElementById('debours_montant_ttc').value = (tva) + parseFloat(ht_tva) + parseFloat(ht_no_tva)
}
function
montant_debours() {
var ttc = document.getElementById('debours_montant_ttc').value;
var ttc2 = document.getElementById('debours_montant_ttc2').value;
if (ttc == '') {
var ttc = 0;
} else {
var ttc = document.getElementById('debours_montant_ttc').value;
}
if (ttc2 == '') {
var ttc2 = 0;
} else {
var ttc2 = document.getElementById('debours_montant_ttc2').value;
}
tx = parseFloat(ttc) + parseFloat(ttc2);
document.getElementById('ttc_cheque').value = Math.round(tx * 100) / 100;
}
As Id are not the same, do I have to create as many functions
there are lines?
Is it possible to fit a single function to process each line?
If so can you tell me how?

If I'm not mistaken you can use for loop and append increment to the end of element's id. Like this:
trs = document.getElementById('container Id').getElementsByTagName('tr');
For (var i = 1, i <= trs.length; i++)
{
var el = document.getElementById('debours_montant_ttc' + i);
}