Develop Reference

How is this variable still NULL

I'm in the process of writing a CasperJS script to automate a search form and capture the subsequent page. However, the search form goes to a loading splash page first until data arrives. So i added the waitForSelector function which seems to be working for some of my pages, but others return the variable name as NULL. How can that be if it is truly "waiting" for that element to be on the DOM?
casper.each(searchPages,function(casper,index){
var currentTime = new Date();
var month = currentTime.getMonth() + 2;
var day = currentTime.getDate();
var year = currentTime.getFullYear();
var dateStart = month + "/" + day + "/" + year;
month = currentTime.getMonth() + 3;
var dateEnd = month + "/" + day + "/" + year;
casper.thenOpen(url,function(){
var myfile = "data-"+year + "-" + month + "-" + day+".html";
this.evaluate(function(j) {
document.querySelector('select[name="searchParameters.localeId"]').selectedIndex = j;
},index);
this.evaluate(function(start) {
$("#leaveDate").val(start);
},dateStart);
this.evaluate(function(end) {
$("#returnDate").val(end);
},dateEnd);
this.evaluate(function() {
$("#OSB_btn").click();
});
this.waitForSelector('#destinationForPackage', function() {
var name = casper.evaluate(function() {
return $("#destinationForPackage option[value='" + $("#destinationForPackage").val() + "']").text()
});
if (name != "Going To"){
if (name == null){
console.log("it's null");
}else{
name = name.replace("/","_");
casper.capture('Captures/Searches/search_' + name + '.jpg');
console.log("Capturing search_" + name);
}
}
},function(){
console.log("Search page timed-out.");
},20000);
});
});

I was able to solve this by creating a recursive function if the element is still not available. Now i'm having a memory issue though, new question here => CasperJS running out of memory
casper.each(searchPages,function(casper,index){
loadSearch(casper,index);
});
function loadSearch(casper,index){
var currentTime = new Date();
var month = currentTime.getMonth() + 2;
var day = currentTime.getDate();
var year = currentTime.getFullYear();
var dateStart = month + "/" + day + "/" + year;
month = currentTime.getMonth() + 3;
var dateEnd = month + "/" + day + "/" + year;
casper.thenOpen(url,function(){
var myfile = "data-"+year + "-" + month + "-" + day+".html";
this.evaluate(function(j) {
document.querySelector('select[name="searchParameters.localeId"]').selectedIndex = j;
},index);
this.evaluate(function(start) {
$("#leaveDate").val(start);
},dateStart);
this.evaluate(function(end) {
$("#returnDate").val(end);
},dateEnd);
this.evaluate(function() {
$("#OSB_btn").click();
});
this.waitForSelector('#destinationForPackage', function() {
if (this.exists('#destinationForPackage')){
var name = casper.evaluate(function() {
return $("#destinationForPackage option[value='" + $("#destinationForPackage").val() + "']").text()
});
if (name != "Going To"){
if (name == null){
console.log("it's null");
}else{
name = name.replace("/","_");
casper.capture('Captures/Searches/search_' + name + '.jpg');
console.log("Capturing search_" + name);
}
}
}else{
console.log("Still doesn't exist...retry");
loadSearch(casper,index);
}
},function(){
console.log("Search page timed-out.");
},20000);
});
}

JavaScript clock not displaying properly

I'm trying to make an updating JavaScript clock on my webpage. The problem I'm having is that, while the value itself updates (I use alert(timeNow) to show the value and make sure it's updating), the clock on the website doesn't. I was just wondering if there was something I was missing, or if I've just happened to come across something that I can't quite do. I'd prefer if there was a way to do it using jQuery, as I understand that a little better than normal JavaScript.
Javascript:
function updateClock() {
var thisDate = new Date();
if (thisDate.getHours() > 11 && thisDate.getHours() != 0) {
var Hours = Math.abs(thisDate.getHours() - 12);
var AmPm = "PM"
} else {
var Hours = thisDate.getHours()
var AmPm = "AM"
}
if (thisDate.getMinutes() < 10) {
var Mins = "0" + thisDate.getMinutes();
} else {
var Mins = thisDate.getMinutes();
};
var timeNow = thisDate.getDate() + "/" + (thisDate.getMonth() + 1) + "/" + thisDate.getFullYear() + " " + Hours + ":" + Mins + " " + AmPm;
return timeNow;
};
setInterval(updateClock, 1000);
$("span#time").append(updateClock());
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<span id="time"></span>

You are not consuming the return value of updateClock function, thus the updated time is not reflecting.
You should update the text of time span
Use
setInterval(function(){
$("span#time").text(updateClock());
}, 1000);

You are returning the time in the function updateClock(). What you actually want to do is to set it into the DOM at the end of updateClock(). Here is an updated example:
function updateClock() {
var thisDate = new Date();
if (thisDate.getHours() > 11 && thisDate.getHours() != 0) {
var Hours = Math.abs(thisDate.getHours() - 12);
var AmPm = "PM"
} else {
var Hours = thisDate.getHours()
var AmPm = "AM"
}
if (thisDate.getMinutes() < 10) {
var Mins = "0" + thisDate.getMinutes();
} else {
var Mins = thisDate.getMinutes();
};
var timeNow = thisDate.getDate() + "/" + (thisDate.getMonth()+1) + "/" + thisDate.getFullYear() + " " + Hours + ":" + Mins + " " + AmPm;
$("span#time").text(timeNow);
}
setInterval(updateClock, 1000);
You could of course also just use the returned value of updateClock() to update the DOM. In this way, you would separate the DOM manipulation and the JavaScript time calculation. #Satpal described this way.

Try This...
$(document).ready(function()
{
goforit();
});
var dayarray=new Array ("Sunday","Monday","Tuesday","Wednesday",
"Thursday","Friday","Saturday")
var montharray=new Array("January","February","March","April","May","June",
"July","August","September","October","November","December")
function getthedate() {
d = new Date();
d.setUTCFullYear(2004);
d.setUTCMonth(1);
d.setUTCDate(29);
d.setUTCHours(2);
d.setUTCMinutes(45);
d.setUTCSeconds(26);
var mydate=new Date()
var year=mydate.getYear()
if (year < 1000)
year+=1900
var day=mydate.getDay()
var month=mydate.getMonth()
var daym=mydate.getDate()
if (daym<10)
daym="0"+daym
var hours=mydate.getHours()
var minutes=mydate.getMinutes()
var seconds=mydate.getSeconds()
var dn=""
if (hours>=12)
dn=""
if (hours>12){
hours=hours-12
}
if (hours==0)
hours=12
if (minutes<=9)
minutes="0"+minutes
if (seconds<=9)
seconds="0"+seconds
//Hire change font size
var cdate=""
+ mydate.toLocaleString()
+""
if (document.all)
document.all.clock.innerHTML=cdate
else if (document.getElementById)
document.getElementById("clock").innerHTML=cdate
else
document.write(cdate)
}
if (!document.all&&!document.getElementById)
getthedate()
function goforit()
{
if (document.all||document.getElementById)
setInterval("getthedate()",1000)
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<SPAN id=clock style="display:block"></SPAN>

setInterval(function() {
$("span#time").text(moment(new Date()).format('DD/M/YYYY LTS'));
}, 1000);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://momentjs.com/downloads/moment.js"></script>
<span id="time"></span>

Daily countdown timer - Display Message at 21:57

I'm struggling to figure out how Date() works, I found this on the web and wanted to make a countdown that stops at 21:57 UTC Time. It currently displays the message at 21:00 and apears until 22:00.
I tried to add if(currenthours != 21 && currentminutes >= 57){ and always broke it and got the message. I want it to stop 3 minutes before 22:00 and display the message. After it gets to 22:00 restart the countdown for the next day at 21:57.
Any help will be greatly appreciated !
var date;
var display = document.getElementById('time');
setInterval(function(){
date = new Date( );
var currenthours = date.getUTCHours();
// alert(currenthours);
var currentminutes = date.getUTCMinutes();
// alert(currentminutes);
var hours;
var minutes;
var secondes;
if (currenthours != 21) {
if (currenthours < 21) {
hours = 20 - currenthours;
} else {
hours = 21 + (24 - currenthours);
}
minutes = 60 - date.getUTCMinutes();
secondes = 60 - date.getUTCSeconds();
display.innerHTML = ('00' + hours).slice(-2) + ' HOURS ' + '<p>' +
('00' + minutes).slice(-2) + ' MINUTES ' + '</p>' +
('00' + secondes).slice(-2) + ' SECONDS';
} else {
display.innerHTML = "IT'S 21:57";
}
},1000);
<div id='time'></div>
Made a fiddle
https://jsfiddle.net/5qrs0tcp/1/
This is what I ended up with :
/*
|================================|
| COUNTDOWN TIMER |
|================================|
*/
// Return the UTC time component of a date in h:mm:ss.sss format
if (!Date.prototype.toISOTime) {
Date.prototype.toISOTime = function() {
return this.getUTCHours() + ':' +
('0' + this.getUTCMinutes()).slice(-2) + ':' +
('0' + this.getUTCSeconds()).slice(-2);
}
}
// Return the difference in time between two dates
// in h:mm:ss.sss format
if (!Date.prototype.timeDiff) {
Date.prototype.timeDiff = function(date2) {
var diff = Math.abs(this - date2);
return timeobj = {
hours : (diff/3.6e6|0), // hours
minutes : ('0' + ((diff%3.6e6)/6e4|0)).slice(-2), // minutes
seconds : ('0' + ((diff%6e4)/1e3|0)).slice(-2) // seconds
}
}
}
function countDown() {
var now = new Date();
var limitHr = 19;
var limitMin = 55;
var limitDate = new Date(+now);
// Set limitDate to next limit time
limitDate.setUTCHours(limitHr, limitMin, 0, 0);
// var msg = ['Currently: ' + now.toISOTime() + '<br>' + 'Limit: ' + limitDate.toISOTime()];
var msg = [];
var diff;
// If outside limitHr:limitMin to (limitHr + 1):00
if (now.getUTCHours() == limitHr && now.getUTCMinutes() >= limitMin) {
msg.push('Countdown stopped');
setTimeout(function(){
msg = ['Wait for it'];
var jsonCounter = {
stats : msg
}
jsonfile.writeFileSync(DailyGamePath, jsonCounter, {spaces: 3});
},5000);
var jsonCounter = {
stats : msg
}
jsonfile.writeFileSync(DailyGamePath, jsonCounter, {spaces: 3});
} else {
if (now > limitDate) limitDate.setDate(limitDate.getDate() + 1);
var jsonCounter = {
hours : now.timeDiff(limitDate).hours,
minutes : now.timeDiff(limitDate).minutes,
seconds : now.timeDiff(limitDate).seconds,
validating : msg
}
jsonfile.writeFileSync(DailyGamePath, jsonCounter, {spaces: 3});
}
}
setInterval(countDown, 1000);
var daily_status;
setTimeout( function(){
setInterval( function() {
jsonfile.readFile(DailyGamePath, (err, obj) => {
daily_status={
hours: obj.hours,
minutes: obj.minutes,
seconds: obj.seconds,
stats: obj.stats,
validating: obj.validating
};
return daily_status;
});
}, 1000);
}, 3000);
setTimeout( function(){
io.sockets.on('connection', (socket) => {
setInterval( function() {
// var GameStatus=DailyGameStatus();
socket.broadcast.emit('stream', {hours:daily_status.hours, minutes:daily_status.minutes, seconds:daily_status.seconds, stats:daily_status.stats, validating:daily_status.validating});
}, 1000);
});
}, 3000);

Date objects are very simple, they're just a time value and some handy methods.
I think your logic just needs to be:
if (currenthours != 21 && currentminutes < 57) {
// set the out of hours message
} else {
// time is from 21:57 to 21:59 inclusive
}
The countdown doesn't quite work because you're counting to 00 not to 57, but otherwise there doesn't seem to be an issue.
var date;
var display = document.getElementById('time');
setInterval(function(){
date = new Date( );
var currenthours = date.getUTCHours();
var currentminutes = date.getUTCMinutes();
var hours;
var minutes;
var secondes;
var limitHr = 5; // Change these to required values
var limitMin = 02; // Using 5:12 for convenience
var message = 'Currently: ' + date.toISOString() + '<p>';
// Create new message if outside limitHr:limitMin to limitHr:59 inclusive
if (currenthours != limitHr || currentminutes < limitMin) {
if (currenthours <= limitHr) {
hours = limitHr - currenthours;
} else {
hours = limitHr + (24 - currenthours);
}
minutes = limitMin - date.getUTCMinutes();
minutes += minutes < 0? 60 : 0;
secondes = 60 - date.getUTCSeconds();
message += ('00' + hours).slice(-2) + ' HOURS ' + '<p>' +
('00' + minutes).slice(-2) + ' MINUTES ' + '</p>' +
('00' + secondes).slice(-2) + ' SECONDS';
} else {
message += 'It\'s on or after ' + limitHr + ':' +
('0'+limitMin).slice(-2) + ' GMT';
}
// Display the message
display.innerHTML = message;
},1000);
<div id="time"></div>
Yes, the timer has issues but that wasn't part of the question. For a counter, it's simpler to just work in time differences, so I've added some methods to Date.prototype for ISO time (to be consistent with ISO Date) and time difference, then use those functions.
The function builds a Date for the end time so that calculations can use Date methods.
// Return the UTC time component of a date in h:mm:ss.sss format
if (!Date.prototype.toISOTime) {
Date.prototype.toISOTime = function() {
return this.getUTCHours() + ':' +
('0' + this.getUTCMinutes()).slice(-2) + ':' +
('0' + this.getUTCSeconds()).slice(-2) + '.' +
('00' + this.getUTCMilliseconds()).slice(-3) + 'Z';
}
}
// Return the difference in time between two dates
// in h:mm:ss.sss format
if (!Date.prototype.timeDiff) {
Date.prototype.timeDiff = function(date2) {
var diff = Math.abs(this - date2);
var sign = this > date2? '+' : '-';
return sign + (diff/3.6e6|0) + ':' + // hours
('0' + ((diff%3.6e6)/6e4|0)).slice(-2) + ':' + // minutes
('0' + ((diff%6e4)/1e3|0)).slice(-2) + '.' + // seconds
('00' + (diff%1e3)).slice(-3); // milliseconds
}
}
function countDown() {
var now = new Date();
var limitHr = 1;
var limitMin = 10;
var limitDate = new Date(+now);
// Set limitDate to next limit time
limitDate.setUTCHours(limitHr, limitMin, 0, 0);
var msg = ['Currently: ' + now.toISOTime() + '<br>' + 'Limit: ' + limitDate.toISOTime()];
var diff;
// If outside limitHr:limitMin to (limitHr + 1):00
if (now.getUTCHours() != limitHr || now.getUTCMinutes() != limitMin) {
if (now > limitDate) limitDate.setDate(limitDate.getDate() + 1);
msg.push(now.timeDiff(limitDate));
} else {
msg.push('It\'s after ' + limitHr + ':' + ('0'+limitMin).slice(-2));
}
document.getElementById('msgDiv2').innerHTML = msg.join('<br>');
}
window.onload = function() {
setInterval(countDown, 1000);
}
<div id="msgDiv2"></div>>
I've left the milliseconds in, round to seconds if you wish.
I've left the timer using setInterval, though I'd prefer to use setTimeout and manually calculate the time to just after the next full second so that it never skips. Most browsers using setTimeout will slowly drift so that they skip a second every now and then. Not really an issue unless you happen to see it, or compare it to the tick of the system clock.

Jquery How to check today time greater then use given time?

How to check time conditionin Jquery
var startTime="20:02:55"; // or 12:34
var endTime ="21:02:55" // or 1:34
var dt = new Date();
var time = dt.getHours() + ":" + dt.getMinutes() + ":" + dt.getSeconds();
if(time >startTime || time < endTiime){
$("#a").html("show Box");
}else{
$("#a").html("Expire BOx");
}
How to check 12 hour and 24 hour condition also?
is it correct? i need am, pm format check please can anyone help me?

Here is some code. I am appending to show both behaviour.
Here is DEMO
test("20:02:55", "21:02:55");
test("13:02:55", "15:02:55");
function test(start_time, end_time) {
var dt = new Date();
//convert both time into timestamp
var stt = new Date((dt.getMonth() + 1) + "/" + dt.getDate() + "/" + dt.getFullYear() + " " + start_time);
stt = stt.getTime();
var endt = new Date((dt.getMonth() + 1) + "/" + dt.getDate() + "/" + dt.getFullYear() + " " + end_time);
endt = endt.getTime();
var time = dt.getTime();
if (time > stt && time < endt) {
$("#a").append("<br> show Box ");
} else {
$("#a").append("<br> Expire BOx ");
}
}

Try this.
I took the logic to print 'Show Box' if the current time is in between the start and end time. else viceversa.
var startTime="20:02:55"; // or 12:34
var endTime ="21:02:55" // or 1:34
var dt = new Date();
var st = new Date('00','00','00',startTime.split(':')[0],startTime.split(':')[1],startTime.split(':')[2]);
var et = new Date('00','00','00',endTime.split(':')[0],endTime.split(':')[1],endTime.split(':')[2]);
if(dt.getTime() >st.getTime() && dt.getTime() < et.getTime()){
alert("show Box");
}else{
alert("Expire BOx");
}

Popup cookie once per browser session

I have a very simple popup, I would like to set a cookie, so when the visitor visits the page / category for the first time he will be able to see the popup and if he navigates out of the page and comes back, the popup won't appear until he ends the session (closes the browser). Thanks!
<script type="text/javascript">
var link;
var element;
t = setTimeout(openPopUp, 3000);
function openPopUp() {
element = document.getElementById("background");
element.style.display = "block";
element = document.getElementById("popup");
element.style.display = "block";
}
function closePopUp() {
element = document.getElementById("popup");
element.style.display = "none";
element = document.getElementById("background");
element.style.display = "none";
}
</script>
Edit: From comments:
var createCookie = Openpopup(name, value, days) {
var expires;
if (days) {
var date = new Date();
date.setTime(date.getTime() + (60 * 1000));
expires = ";
expires = " + date.toGMTString();
} else {
expires = "";
}
document.cookie = name + "=" + value + expires + ";
path=/";
}

Something in the like (untested code):
var link;
// ....
if(getCookie("was_here_before")=="") {
setTimeout(openPopUp, 3000);
createCookie("was_here_before", "yes", 1);
}
// ....
// these are from SO answer in first comment by Sverri M. Olsen
// [ http://stackoverflow.com/questions/4825683/how-do-i-create-and-read-a-value-from-cookie ]
function createCookie(name, value, days) {
var expires;
if (days) {
var date = new Date();
date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
expires = "; expires=" + date.toGMTString();
}
else {
expires = "";
}
document.cookie = name + "=" + value + expires + "; path=/";
}
function getCookie(c_name) {
if (document.cookie.length > 0) {
c_start = document.cookie.indexOf(c_name + "=");
if (c_start != -1) {
c_start = c_start + c_name.length + 1;
c_end = document.cookie.indexOf(";", c_start);
if (c_end == -1) {
c_end = document.cookie.length;
}
return unescape(document.cookie.substring(c_start, c_end));
}
}
return "";
}
// ....
function openPopUp(url) {
var element;
link = url; // don't know what this is for
element = document.getElementById("background");
element.style.display = "block";
element = document.getElementById("popup");
element.style.display = "block";
}
function closePopUp() {
var element;
element = document.getElementById("popup");
element.style.display = "none";
element = document.getElementById("background");
element.style.display = "none";
}