How push element to array from ajax - jQuery

How push element to array from ajax - jQuery - javascript

When I try push some element to array and display random element, browser return that array is not define. Where is problem?
var dir = "./images/radovi/";
var ext = ".png";
var slike = [];
$.ajax({
url: dir,
success: function (data) {
$(data).find("a:contains(" + ext + ")").each(function () {
var ime_slike = this.href.replace(window.location.host, "").replace("http:///", "");
slike.push(dir + ime_slike + ext);
});
}
});
$('<img src="' + slike[Math.floor(Math.random() * slike.length)] + '">').appendTo('#radovi');

AJAX is Asynchronous. The code that populates your array is being called after the code that uses the array. Move the code that creates the image into the success handler:
var dir = "./images/radovi/";
var ext = ".png";
var slike = [];
$.ajax({
url: dir,
success: function (data) {
$(data).find("a:contains(" + ext + ")").each(function () {
var ime_slike = this.href.replace(window.location.host, "").replace("http:///", "");
slike.push(dir + ime_slike + ext);
});
if (slike.length) {
$('<img src="' + slike[Math.floor(Math.random() * slike.length)] + '">').appendTo('#radovi');
}
}
});

Related

JSON.stringify output to display in table

I POST my table data using ajax in database. Now I want to get back when I give click the open button.
$.ajax({
type: "POST",
url: "http://localhost/./Service/GetPageInfo",
dataType: "json",
contentType: 'application/json',
data: JSON.stringify({
filename: filename
}),
success: function (data) {
debugger;
//var p = JSON.stringify('[' + data + ']');
// alert(p.GetPageInfoResult[0])
//var k = data.main[0];
//alert(data.length);
//var jsonObj = $.parseJSON('[' + data + ']');
//alert(JSON.parse(data));
var jsonPretty = JSON.stringify(JSON.parse(data), null, 2);
},
error: function () {
alert('Error');
When I give my file name I want to display my pageinfo. I get data like
[{"main":{"sub":[],"tittle":"oops","startvalue":"21","stopvalue":"45","status":"","accumalated":"","comment":""}}]

You have not cleared where you want place your resultant Json. Below is that Success result placed in div having table . It is just a sample you may change as per your requirement:
function OnSuccess(response) {
debugger;
var xmlDoc = $.parseXML(response.d);
var xml = $(xmlDoc);
var page = xml.find("Table");
var row = "";
$('#popupdiv tbody').html('');
page.each(function () {
var page = $(this);
row = " " + page.find("tittle").text() + " " + page.find("startvalue").text() +
" " + page.find("stopvalue").text() + " " + page.find("status").text() +
" " + page.find("accumalated").text() + " " + page.find("comment").text() + "";
$('#popupdiv tbody').append(row);
});
}

Javascript Sort Error with sort function possible simple fix

Probably a simple fix, The rest of the table is sorted excpet this part here
(right at the top)
The table will work now and again in the right order (data from source does not change) but is really dicey when it does or not
Ideas?
Sam
Heres the code
//first define a function
var sortTable = function() {
$("#tableid tbody tr").detach().sort(function(a, b) {
var dataA = $(a).find("td:eq(3)").text().trim();
var dataB = $(b).find("td:eq(3)").text().trim();
return parseFloat(dataA.substring(1)) - parseFloat(dataB.substring(
1));
}).appendTo('#tableid');
};
//include two files where rows are loaded
//1.js
$.ajax({
type: 'GET',
crossDomain: true,
dataType: 'json',
url: 'url1',
success: function(json) {
//var json = $.parseJSON(data);
for (var i = 0; i < json.results.length; i++) {
var section = json.results[i].section;
var no = json.results[i].avalible;
var price = json.results[i].price;
var button =
"<button class='redirect-button' data-url='LINK'>Compare</button>";
$("#tableid").append("<tr ><td>" + section +
"</td><td>" + no + "</td><td>" + price +
"</td><td>" + button + "</td></tr>");
$("#tableid").find(".redirect-button").click(function() {
location.href = $(this).attr("data-url");
});
}
sortTable();
},
error: function(error) {
console.log(error);
}
});
//and here is the 2nd js file
$.ajax({
type: 'GET',
crossDomain: true,
dataType: 'json',
url: 'url2',
success: function(json) {
//var json = $.parseJSON(data);
for (var i = 0; i < json.results.length; i++) {
var section = json.results[i].section;
var no = json.results[i].avalible;
var price = json.results[i].price;
var button =
"<button class='redirect-button' data-url='LINK'>Click Here</button>";
$("#tableid").append("<tr><td>" + section +
"</td><td>" + no + "</td><td>" + price +
"</td><td>" + button + "</td></tr>");
$("#tableid").find(".redirect-button").click(function() {
location.href = $(this).attr("data-url");
});
}
sortTable();
},
error: function(error) {
console.log(error);
}
});

The sorting as to do with spaces but is also linked to your jquery selector.
As often, array are 0 index based in Jquery, then if you want to sort on your price your 2nd column (0-index based) you need to do as below :
var sortTable = function() {
$("#tableid tbody tr").detach().sort(function(a, b) {
var dataA = $(a).find("td:eq(2)").text().replace(/\s/g, "");
var dataB = $(b).find("td:eq(2)").text().replace(/\s/g, "");
return parseFloat(dataA.substring(1)) - parseFloat(dataB.substring(
1));
}).appendTo('#tableid');
};
var json = {results:[{price:"$12 .45"}, {price:"$13 .45"}, {price:"$12 .05"}, ]}
for (var i = 0; i < json.results.length; i++) {
var section = json.results[i].section;
var no = json.results[i].avalible;
var price = json.results[i].price;
$("#tableid").append("<tr ><td>section</td><td>no</td><td>" + price);
}
sortTable();
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table id="tableid"></table>
`

Javascript error with sort

i have this code as shown below,
i got this from a developer who went afk because he has family troubles
basically this code below should grab the json results and form them into a table after sorting the price and then placing it in the table.
heres the code
//first define a function
var sortTable = function () {
$("#tableid tbody tr").detach().sort(function (a, b) {
//substring was added to omit currency sign, you can remove it if data-price attribute does not contain it.
return parseFloat($(a).data('price').substring(1)) - parseFloat($(b).data('price').substring(1));
})
.appendTo('#tableid tbody');
};
//include two files where rows are loaded
//1.js
$.ajax({
type: 'GET',
crossDomain: true,
dataType: 'json',
url: 'api link here',
success: function (json) {
//var json = $.parseJSON(data);
for (var i = 0; i < json.results.length; i++) {
var section = json.results[i].section;
var no = json.results[i].avalible;
var price = json.results[i].price;
var button = "<button class='redirect-button' data-url='LINK'>Compare</button>";
$("#tableid tbody").append("<tr data-price='" + price + "'><td>" + section + "</td><td>" + no + "</td><td>" + price + "</td><td>" + button + "</td></tr>");
$("#tableid").find(".redirect-button").click(function () {
location.href = $(this).attr("data-url");
});
}
sortTable();
},
error: function (error) {
console.log(error);
}
});
//and here is the 2nd js file
$.ajax({
type: 'GET',
crossDomain: true,
dataType: 'json',
url: '2nd api',
success: function (json) {
//var json = $.parseJSON(data);
for (var i = 0; i < json.results.length; i++) {
var section = json.results[i].section;
var no = json.results[i].avalible;
var price = json.results[i].amount;
var button = "<button class='redirect-button' data-url='LINK'>Click Here</button>";
$("#tableid tbody").append("<tr data-price='" + price + "'><td>" + section + "</td><td>" + no + "</td><td>" + price + "</td><td>" + button + "</td></tr>");
$("#tableid").find(".redirect-button").click(function () {
location.href = $(this).attr("data-url");
});
}
sortTable();
},
error: function (error) {
console.log(error);
}
});

Accessing the DOM, to get data that needs to be sorted, is a bad practice IMO. Even worse when you had the results in raw JSON form in the first place (in the success callback of the ajax call). Your success function should do something like this
success: function (json) {
//first sort the results - or better store these results somewhere
//and use that as a data store that is responsible for what is rendered in the DOM
json.results.sort(function(a,b) {
//using substring and parseFloat just like it was done in sortTable
//assuming price field has prices as strings with currency symbol in the first place
return parseFloat(a.substring(1)) - parseFloat(b.substring(1))
});
for (var i = 0; i < json.results.length; i++) {
var section = json.results[i].section;
var no = json.results[i].avalible;
var price = json.results[i].amount;
var button = "<button class='redirect-button' data-url='LINK'>Click Here</button>";
$("#tableid tbody").append("<tr data-price='" + price + "'><td>" + section + "</td><td>" + no + "</td><td>" + price + "</td><td>" + button + "</td></tr>");
$("#tableid").find(".redirect-button").click(function () {
location.href = $(this).attr("data-url");
});
}
}

Bootstrap gallery template flickr images

i'm using this template for a personal project.
https://github.com/blueimp/Bootstrap-Image-Gallery
and there is this code here that gets photos from flickr. This code uses the method flickr.interestingness.getList which takes tags as an argument as seen here. http://www.flickr.com/services/api/flickr.interestingness.getList.html
I want to pass in tags as an argument, but I can't figure out the syntax for doing so in ajax or w/e the format being used in this code is.
// Load images via flickr for demonstration purposes:
$.ajax({
url: 'http://api.flickr.com/services/rest/',
data: {
format: 'json',
method: 'flickr.interestingness.getList',
api_key: 'API_KEY_abc123'
},
dataType: 'jsonp',
jsonp: 'jsoncallback'
}).done(function (data) {
var gallery = $('#gallery'),
url;
$.each(data.photos.photo, function (index, photo) {
url = 'http://farm' + photo.farm + '.static.flickr.com/' +
photo.server + '/' + photo.id + '_' + photo.secret;
$('<a data-gallery="gallery"/>')
.append($('<img>').prop('src', url + '_s.jpg'))
.prop('href', url + '_b.jpg')
.prop('title', photo.title)
.appendTo(gallery);
});

This seems like a better project:
http://petejank.github.io/js-flickr-gallery/

/*
* Bootstrap Image Gallery JS Demo 3.0.0
* https://github.com/blueimp/Bootstrap-Image-Gallery
*
* Copyright 2013, Sebastian Tschan
* https://blueimp.net
*
* Licensed under the MIT license:
* http://www.opensource.org/licenses/MIT
* Plugin was modified by ravindu
*/
(function( $ ) {
$.fn.flickr = function(options) {
var url = 'http://api.flickr.com/services/rest/?jsoncallback=?';
var settings = $.extend( {
'api_key': 'YOUR API',
}, options);
function view_image(event) {
var target = $(event.target);
if(target.is('img')) {
var url = target.attr('data-url');
var cache = new Image();
cache.src = url;
var gallery = target.parents('.flickr-gallery:first').children('div.viewport');
var info = gallery.children('div.image-info');
var image = gallery.children('img');
image.fadeOut('slow', function () {
image.attr('src', url);
image.fadeIn('slow');
info.html(target.attr('data-title') + '<br />' + target.attr('data-tags'));
});
}
}
return this.each(function() {
var gallery = $(this);
gallery.addClass('flickr-gallery');
gallery.append('<h2></h2><h3></h3><div class="viewport"></div><div class="browser"><ul></ul></div><div class="clear"></div>');
$.getJSON(url, {
method: 'flickr.photosets.getInfo',
api_key: settings.api_key,
photoset_id: settings.photoset_id,
format: 'json'
}).success(function(state) {
gallery.children('h3').html(state.photoset.description._content);
gallery.find('.loader').addClass('activate');
$.getJSON(url, {
method: 'flickr.photosets.getPhotos',
api_key: settings.api_key,
media: 'photos',
photoset_id: settings.photoset_id,
format: 'json',
extras: 'url_sq,url_m,url_b,date_taken,tags'
}).success(function(state) {
$('.loader').removeClass('activate');
var list = gallery.find('ul:first');
list.html('');
list.on('click', view_image);
$.each(state.photoset.photo, function(index, photo){
baseUrl = 'http://farm' + photo.farm + '.static.flickr.com/' +
photo.server + '/' + photo.id + '_' + photo.secret;
list.append('<a href="' + this.url_m + '" title="' + this.title + '" data-gallery="" > <img src="' + this.url_sq + '" title="' + this.title + '" ' +
'data-title="' + this.title + '" ' +
'data-url="' + this.url_m + '" ' +
( this.date_taken ? 'data-date="' + this.date_taken + '" ' : '' ) +
'data-tags="' + this.tags + '" ' +
'/></a>');
});
}).fail(function(state) {
alert("Unable to retrieve photo set");
});
}).fail(function(state) {
alert("Unable to retrieve photo set information");
});
});
};
})( jQuery );
$(document).on('ready', function(){
$('#photos-1').flickr({ photoset_id:'72157640241840746'});
$('#photos-2').flickr({ photoset_id:'72157640251299195'});
$('#photos-3').flickr({ photoset_id:'72157640241840746'});
$('#photos-4').flickr({ photoset_id:'72157640251299195'});
$('#photos-5').flickr({ photoset_id:'72157640241840746'});
});

Merging JSON api Response using Javascript

I am trying get paged json responses from Topsy (http://code.google.com/p/otterapi/) and am having problems merging the objects. I want to do this in browser as the api rate limit is per ip/user and to low to do things server side.
Here is my code. Is there a better way? Of course there is because this doesn't work. I guess I want to get this working, but also to understand if there is a safer, and/or more efficient way.
The error message I get is ...
TypeError: Result of expression 'window.holdtweetslist.prototype' [undefined] is not an object.
Thanks in advance.
Cheers
Stephen
$("#gettweets").live('click', function(event){
event.preventDefault();
getTweets('stephenbaugh');
});
function getTweets(name) {
var MAX_TWEETS = 500;
var TWEETSPERPAGE = 50;
var BASE = 'http://otter.topsy.com/search.json?type=tweet&perpage=' + TWEETSPERPAGE + '&window=a&nohidden=0&q=#' + name + '&page=1';
var currentpage = 1;
alert(BASE);
$.ajax({
dataType: "json",
url: BASE,
success: function(data) {
window.responcesreceived = 1;
var response=data.response;
alert(response.total);
window.totalweets = response.total;
window.pagestoget = Math.ceil(window.totalweets/window.TWEETSPERPAGE);
window.holdtweetslist = response.list;
window.holdtweetslist.prototype.Merge = (function (ob) {var o = this;var i = 0;for (var z in ob) {if (ob.hasOwnProperty(z)) {o[z] = ob[z];}}return o;});
// alert(data);
;; gotTweets(data);
var loopcounter = 1;
do
{
currentpage = currentpage + 1;
pausecomp(1500);
var BASE = 'http://otter.topsy.com/search.json?type=tweet&perpage=' + TWEETSPERPAGE + '&window=a&nohidden=0&q=#' + name + '&page=' + currentpage;
alert(BASE);
$.ajax({dataType: "json", url: BASE, success: gotTweets(data)});
}
while (currentpage<pagestoget);
}
});
};
function gotTweets(data)
{
window.responcesreceived = window.responcesreceived + 1;
var response = data.response;
alert(response.total);
window.holdtweetslist.Merge(response.list);
window.tweetsfound = window.tweetsfound + response.total;
if (window.responcesreceived == window.pagestoget) {
// sendforprocessingsendtweetlist();
alert(window.tweetsfound);
}
}

You are calling Merge as an static method, but declared it as an "instance" method (for the prototype reserved word).
Remove prototype from Merge declaration, so you'll have:
window.holdtweetslist.Merge = (function(ob)...
This will fix the javascript error.

This is Vipul from Topsy. Would you share the literal JSON you are receiving? I want to ensure you are not receiving a broken response.

THanks to Edgar and Vipul for there help. Unfortunately they were able to answer my questions. I have managed to work out that the issue was a combination of jquery not parsing the json properly and needing to use jsonp with topsy.
Here is a little test I created that works.
Create a doc with this object on it ....
RUN TEST
You will need JQUERY
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script>
And put the following in a script too. The is cycle through the required number of tweets from Topsy.
Thanks again everyone.
$("#gettweets").live('click', function(event){
event.preventDefault();
getTweets('stephenbaugh');
});
var MAX_TWEETS = 500;
var TWEETSPERPAGE = 50;
var BASE = 'http://otter.topsy.com/search.json';
var currentpage;
var responcesreceived;
var totalweets;
var pagestoget;
var totalweets;
var TWEETSPERPAGE;
var holdtweetslist = [];
var requestssent;
var responcesreceived;
var tweetsfound;
var nametoget;
function getTweets(name) {
nametoget=name;
currentpage = 1;
responcesreceived = 0;
pagestoget = 0;
var BASE = 'http://otter.topsy.com/search.js?type=tweet&perpage=' + TWEETSPERPAGE + '&window=a&nohidden=0&q=#' + nametoget + '&page=1';
$('#gettweets').html(BASE);
$.ajax({url: BASE,
dataType: 'jsonp',
success : function(data) {
getalltweets(data);
}
});
};
function getalltweets(data) {
totalweets = data.response.total;
$('#gettweets').append('<p>'+"total tweets " + totalweets+'</p>');
$('#gettweets').append('<p>'+"max tweets " + MAX_TWEETS+'</p>');
if (MAX_TWEETS < totalweets) {
totalweets = 500
}
$('#gettweets').append('<p>'+"new total tweets " + totalweets+'</p>');
gotTweets(data);
pagestoget = Math.ceil(totalweets/TWEETSPERPAGE);
var getpagesint = self.setInterval(function() {
currentpage = ++currentpage;
var BASE = 'http://otter.topsy.com/search.js?type=tweet&perpage=' + TWEETSPERPAGE + '&window=a&nohidden=0&q=#' + nametoget + '&page=' + currentpage;
$.ajax({url: BASE,
dataType: 'jsonp',
success : function(data) {
gotTweets(data);
}
});
if (currentpage == pagestoget) {
$('#gettweets').append('<p>'+"finished sending " + currentpage+ ' of ' + pagestoget + '</p>');
clearInterval(getpagesint);
};
}, 2000);
};
function gotTweets(data)
{
responcesreceived = responcesreceived + 1;
holdlist = data.response.list;
for (x in holdlist)
{
holdtweetslist.push(holdlist[x]);
}
// var family = parents.concat(children);
$('#gettweets').append('<p>receipt # ' + responcesreceived+' - is page : ' +data.response.page+ ' array length = ' + holdtweetslist.length +'</p>');
// holdtweetslist.Merge(response.list);
tweetsfound = tweetsfound + data.response.total;
if (responcesreceived == pagestoget) {
// sendforprocessingsendtweetlist();
$('#gettweets').append('<p>'+"finished receiving " + responcesreceived + ' of ' + pagestoget + '</p>');
}
}

Develop Reference

JavaScript is the programming language of the Web.

How push element to array from ajax - jQuery - javascript

Related

JSON.stringify output to display in table

Javascript Sort Error with sort function possible simple fix

Javascript error with sort

Bootstrap gallery template flickr images

Merging JSON api Response using Javascript

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