Here is the code :
var array = [];
$('.body-watch-logo').each(function () {
array[]['evendId'] = $(this).data('event');
array[]['timestamp'] = $(this).data('timestamp');
$now = new Date();
$outStr = now.getHours()+':'+now.getMinutes();
alert($outStr);
if(array[]['timestamp'] == $outStr) {
alert('Tring Tring Tring');
//do something here
}
$i++;
});
.body-watch-logo has several events in it with attributes eventId and startTime. So I want to store this information in array. Then compare the startTime which has only Hour and minute with current-time. If they are equal give an alert. Does anyone have an idea how to do this? Use Ajax may be. Please suggest.
You incremented i, but never initialized it or used it as your array index. But you don't need to do either, since .each() passes the index as an argument to the iteration function. See
http://api.jquery.com/jQuery.each/
The elements of the array are better implemented as objects, not sub-arrays.
var array = [];
$('.body-watch-logo').each(function (i) {
array[i] = { event: $(this).data('event'),
timestamp: $(this).data('timestamp')
};
$now = new Date();
$outStr = now.getHours()+':'+now.getMinutes();
alert($outStr);
if(array[i].timestamp == $outStr) {
alert('Tring Tring Tring');
//do something here
}
});
Related
I have set up a HBS helper which takes in two arrays of objects (users privileges). What I want to do is compare them and inject back into the template the privileges the user does and doesn't have.
Presently I can compare the names of the privileges with the following code:
hbs.registerHelper('selected', function(option, value){
var i;
var j;
var privName;
var userPriv;
var privObj = new Object();
var privArray = [];
for(i in option){
console.log('each ' + JSON.stringify(option[i]));
privName = option[i].privname;
for (y in value){
if(privName == value[y].privname){
userPriv = value[y].privname;
console.log('user has the following privileges', value[y].privname);
privObj = new Object();
privObj.name = userpriv;
privObj.id = value[y]._id;
privObj.state = 'selected';
privArray.push(privObj);
} else if (privName != value[y].privname){
console.log('user doesnt have priv ', privName);
privObj = new Object();
privObj.name = option[i].privname;
privObj.id = option[i].id;
privObj.state = '';
privArray.push(privObj);
}
}
}
console.log('privileges array ', privArray);
return privArray;
});
This works OK when the user only has one privilege, however when the user has more than one, for example two privileges, it returns the privileges twice. If the user has 3, thrice and so on. I know this is because the array is looping again because their are 2, 3 etc in the .length. However I can't seem to find an adequate solution.
Any help?
P.S. it would be nice if the Array.includes() method allowed you to search object properties.
The problem creating new objects the way you did is that for each property you add to your privilege-entity you will have to return to that function and set that property as well. You can instead just add/alter the state property of the existing objects:
hbs.registerHelper('selected', function(option, value) {
var names = option.map(function(opt) {
return opt.privname;
});
value.forEach(function(val) {
val.state = names.indexOf(val.privname) >= 0 ? 'selected' : '';
});
return value;
});
Basically:
The variable names is being mapped to be an array only with the privnames. You can check by using console.log(names).
The Array.forEach() function is helpful in this case because you just need to iterate over each object inside value and set its state-property.
To check if the privname exists, you just need to check the index in the previous names-mapped-array. For such a simple thing I used ternary operator (?:).
Finally, you return value, which is the array containing the objects you had updated.
I am trying to write some javascript in Zapier which will read two dates and then return an array of all dates between those dates in such a way that they can then be used to create multiple dated records in Airtable (a database). From the Zapier help it says that if you return an array of objects then the following steps will be processed for each.
I have managed to get code which returns the data I wan but it can't be correct because if I try to create the database records only one is created - with all the dates in (so it will only work if output to a text field - not a date). Here's my code attempt:
var fromDate = new Date(inputData.from);
var toDate = new Date(inputData.to);
var output =[];
var i = 1;
do {
var useDate = new String(fromDate.toISOString())
output.push(useDate);
console.log(fromDate);
fromDate.setDate(fromDate.getDate() + 1);
i++
}
while (fromDate <= toDate);
console.log(output);
return{output};
The subsequent step does see the output variable - but it is treated as one value as I said above.
Does anyone have any ideas?
Thanks Juan
That sorted it - or at least it did after removing the return - here is the working code:
var fromDate = new Date(inputData.from);
var toDate = new Date(inputData.to);
var output =[];
var i = 1;
do {
var useDate = new String(fromDate.toISOString())
var dateObject = {};
dateObject.date = useDate;
output.push({dateObject});
fromDate.setDate(fromDate.getDate() + 1);
i++
}
while (fromDate <= toDate);
It looks like you're returning an object, not an array of objects:
return{output};
Also, your do/while statement is creating an array of strings, not objects. In your do block, instead of pushing the useDate string to the output array, you should construct a simple object and push that to the output array.
So instead of pushing '2016-09-28T00:00:00.000Z' each time the loop runs, you should push something like {date: '2016-09-28T00:00:00.000Z'}.
Your do block should look something like this:
do {
var useDate = new String(fromDate.toISOString());
var dateObject = {};
dateObject.date = useDate;
output.push(dateObject);
fromDate.setDate(fromDate.getDate() + 1);
i++
}
This way, output will be an array of objects:
[
{
"date": "2016-09-28T00:00:00.000Z"
},
{
"date": "2016-09-29T00:00:00.000Z"
},
{
"date": "2016-09-30T00:00:00.000Z"
}
]
I'm trying to parse multiple subreddit feeds in a Google Script. I can call this Google Script (redditFeeds()) and it returns the title, link, and date to my spreadsheet. However, I want to sort the posts by date so I can see the most recent posts first. I've tried using sort() on the array in various ways and can't get anything sort by descending date. I've even tried converting the date to a Date object and that didn't fix it.
function redditFeeds() {
var entries_array = [];
var subreddit_array = ['https://www.reddit.com/r/funny/top/.rss','https://www.reddit.com/r/news/top/.rss']
for (var s = 0; s < subreddit_array.length; s++) {
var xml = UrlFetchApp.fetch(subreddit_array[s]).getContentText();
var document = XmlService.parse(xml);
var root = document.getRootElement();
var atom = XmlService.getNamespace('http://www.w3.org/2005/Atom');
var entries = document.getRootElement().getChildren('entry', atom);
for (var i = 0; i < entries.length; i++) {
var title = entries[i].getChild('title', atom).getText();
var title = entries[i].getChild('link', atom).getText();
var link = entries[i].getChild('link', atom).getAttribute('href').getValue();
var date = entries[i].getChild('updated', atom).getValue();
entries_array.push([title, link, date]);
}
}
//return entries_array;
//doesn't work
//entries_array.sort(function(a,b) {
// return a.date - b.date;
//});
//also not working
return entries_array.sort(function(a,b) {
new Date(a.date).getTime() - new Date(b.date).getTime();
});
}
I think you want the below, assuming entries_array looks like I think it does. I have no idea what start was supposed to be in your code... I think each entry in entries_array is an array with three members in it, the third being some sort of representation of a date. If it's one that can be parsed by new Date, then this code should work:
return entries_array.sort(function (a, b) {
return new Date(a[2]) - new Date(b[2]);
});
If that's not right, please share what entries_array looks like.
I see a return missing, in the inner sort function and you should not need the getTime()
return entries_array.sort(function(a,b) {
return new Date(a.start) - new Date(b.start);
});
An easy way of sorting date objects is by converting them into UNIX time stamps using dateObj.getTime(). This creates an integer of the seconds since midnight on New Years day 1970. It's very useful if you are working in multiple time zones.
I'm fairly new to Javascript, what I am trying to do is work out how to setup the correct array style for my form. What I want to be able to do is add each schedule to an array as a string and then be able to access the elements of that string(s) later for use such as sorting or searching for in the string. Currently its accessing each word as an index not a string first, the correct way to access an element within a string would be as myArray[0] = the string and then myArray[0][0] = the first element of that string and so on and so forth? I'd like to use vanilla Javascript as im still learning the fundamentals. Below is my code for how i am adding each schedule to the array, Im not sure where im going wrong, I think it has to do with the way its getting added to the global array. Thanks guys.
var myArr = new Array();
function addSchedule() {
var myPriority;
var date;
var endtime;
var mySubject;
if(document.getElementById('high').checked){
myPriority = document.getElementById('high').value;
}else if(document.getElementById('low').checked) {
myPriority = document.getElementById('low').value;
}
date = document.getElementById('Date').value;
endtime = document.getElementById('endtime').value;
mySubject = document.getElementById('Subject').value;
var priorityString = (myPriority)
var dateString = (date)
var subjectString = (mySubject)
// I think this needs to be a string some how but i dont know
var oneString = new Array(priorityString,dateString,endTimeString,subjectString)
myArr[myArr.length] = (oneString)
I think what you're actually trying to do is add objects to an array which represent each of the properties you're reading from your UI
var myArr = new Array();
function addSchedule() {
var myPriority;
var date;
var endtime;
var mySubject;
if(document.getElementById('high').checked){
myPriority = document.getElementById('high').value;
}else if(document.getElementById('low').checked) {
myPriority = document.getElementById('low').value;
}
date = document.getElementById('Date').value;
endtime = document.getElementById('endtime').value;
mySubject = document.getElementById('Subject').value;
// create an object
var myObj = {
priority: myPriority,
date : date,
endTime: endtime,
subject: mySubject
};
// add it to array
myArr.push(myObj);
}
Thereafter, if you wanted to read an object & it's properties from the array you could have
// for example:
var firstObjectPriority = myArr[0].priority;
I have an array that looks like this
var Zips = [{Zip: 92880, Count:1}, {Zip:91710, Count:3}, {Zip:92672, Count:0}]
I would like to be able to access the Count property of a particular object via the Zip property so that I can increment the count when I get another zip that matches. I was hoping something like this but it's not quite right (This would be in a loop)
Zips[rows[i].Zipcode].Count
I know that's not right and am hoping that there is a solution without looping through the result set every time?
Thanks
I know that's not right and am hoping that there is a solution without
looping through the result set every time?
No, you're gonna have to loop and find the appropriate value which meets your criteria. Alternatively you could use the filter method:
var filteredZips = Zips.filter(function(element) {
return element.Zip == 92880;
});
if (filteredZips.length > 0) {
// we have found a corresponding element
var count = filteredZips[0].count;
}
If you had designed your object in a different manner:
var zips = {"92880": 1, "91710": 3, "92672": 0 };
then you could have directly accessed the Count:
var count = zips["92880"];
In the current form, you can not access an element by its ZIP-code without a loop.
You could transform your array to an object of this form:
var Zips = { 92880: 1, 91710: 3 }; // etc.
Then you can access it by
Zips[rows[i].Zipcode]
To transform from array to object you could use this
var ZipsObj = {};
for( var i=Zips.length; i--; ) {
ZipsObj[ Zips[i].Zip ] = Zips[i].Count;
}
Couple of mistakes in your code.
Your array is collection of objects
You can access objects with their property name and not property value i.e Zips[0]['Zip'] is correct, or by object notation Zips[0].Zip.
If you want to find the value you have to loop
If you want to keep the format of the array Zips and its elements
var Zips = [{Zip: 92880, Count:1}, {Zip:91710, Count:3}, {Zip:92672, Count:0}];
var MappedZips = {}; // first of all build hash by Zip
for (var i = 0; i < Zips.length; i++) {
MappedZips[Zips[i].Zip] = Zips[i];
}
MappedZips is {"92880": {Zip: 92880, Count:1}, "91710": {Zip:91710, Count:3}, "92672": {Zip:92672, Count:0}}
// then you can get Count by O(1)
alert(MappedZips[92880].Count);
// or can change data by O(1)
MappedZips[92880].Count++;
alert(MappedZips[92880].Count);
jsFiddle example
function getZip(zips, zipNumber) {
var answer = null;
zips.forEach(function(zip){
if (zip.Zip === zipNumber) answer = zip;
});
return answer;
}
This function returns the zip object with the Zip property equal to zipNumber, or null if none exists.
did you try this?
Zips[i].Zip.Count