I'm trying to make an XML based menu with JavaScript, XML and jQuery. I've been successful at getting the categories of the menu, but haven't been able to generate the items in the categories.
My script is as follows, and later in this thread, I've asked for suggestions for this code:
var animalsXMLurl = 'http://dl.dropboxusercontent.com/u/27854284/Stuff/Online/XML_animals.xml';
$(function() {
$.ajax({
url: animalsXMLurl, // name of file you want to parse
dataType: "xml",
success: function parse(xmlResponse) {
var data = $("item", xmlResponse).map(function() {
return {
id: $("animal_id", this).text(),
title: $("animal_title", this).text(),
url: $("animal_url", this).text(),
category: $("animal_category", this).text().split('/'),
};
}).get();
var first_item = category_gen(data, 0);
$('ul.w-nav-list.level_2').append(first_item);
var categnumber = new Array();
for (i = 1; i <= data.length; i++) //for splitting id, and getting 0 for category_number (1 or 2 or 3...and so on)
{
categnumber[i] = data[i].id.split('_');
console.log(categnumber[i][0]);
for (j = 1; j <= data.length; j++) //appending via a function.
{
var data_text = category_or_animal(data, categnumber, j);
console.log(data_text);
$('ul.w-nav-list.level_2').append(data_text);
}
}
function category_or_animal(d, catg, k) {
var catg1 = new Array();
var catg2 = new Array();
var catg1 = d[k].id.split('_');
if (d[k - 1]) {
var catg2 = d[k - 1].id.split('_');
//if(d[k-1].id)
if (catg1[0] != catg2[0])
return category_gen(d, k);
} else
return '</ul>' + animal_gen(d, k);
}
function category_gen(d, z) {
var category_var = '<li class="w-nav-item level_2 has_sublevel"><a class="w-nav-anchor level_2" href="javascript:void(0);"><span class="w-nav-title">' + d[z].category + '</span><span class="w-nav-arrow"></span></a><ul class="w-nav-list level_3">';
return category_var;
}
function animal_gen(d, z) {
var animal_var = '<li class="w-nav-item level_3"><a class="w-nav-anchor level_3" href="animals/' + d[z].url + '"><span class="w-nav-title">' + d[z].title + '</span><span class="w-nav-arrow"></span></a></li>';
return animal_var;
}
}, error: function() {
console.log('Error: Animals info xml could not be loaded.');
}
});
});
Here's the JSFiddle link for the above code: http://jsfiddle.net/mohitk117/d7XmQ/4/
In the above code I need some alterations, with which I think the code might work, so I'm asking for suggestions:
Here's the function that's calling separate functions with arguments to generate the menu in above code:
function category_or_animal(d, catg, k) {
var catg1 = new Array();
var catg2 = new Array();
var catg1 = d[k].id.split('_');
if (d[k - 1]) {
var catg2 = d[k - 1].id.split('_');
//if(d[k-1].id)
if (catg1[0] != catg2[0])
return category_gen(d, k);
} else
return animal_gen(d, k) + '</ul>';
}
At the if(catg1[0] != catg2[0]) it checks if the split string 1_2 or 1_3 is equal to 1_1 or 1_2 respectively. By split, I mean the first element: 1 .... if you have a look at the xml: [ :: Animals XML :: ], you'll see that the animal_id is in the format of %category_number% _ %item_number% ... So I need to create the menu with CATEGORY > ITEM (item=animal name)
Now if I could return category_gen() + animal() with animal(){ in a for loop for all the matching category id numbers} then maybe this could be complete! But I don't of a count script for conditioning the for loop (i=0;i<=count();i++)...
Would anyone know of how to get this script functioning?
Hard to tell what the provided JSFiddle is trying to do.
This is my best stab at it. I used JQuery to parse the XML out into categories and generate lists of items.
http://jsfiddle.net/d7XmQ/8/
"use strict";
var animalsXMLurl = 'http://dl.dropboxusercontent.com/u/27854284/Stuff/Online/XML_animals.xml';
$(function () {
var $menu = $('#menu');
$.ajax({
url: animalsXMLurl, // name of file you want to parse
dataType: "xml",
success: handleResponse,
error: function () {
console.log('Error: Animals info xml could not be loaded.');
}
});
function handleResponse(xmlResponse) {
var $data = parseResponse(xmlResponse);
createMenu($data);
}
function parseResponse(xmlResponse) {
return $("item", xmlResponse).map(function () {
var $this = $(this);
return {
id: $this.find("animal_id").text(),
title: $this.find("animal_title").text(),
url: $this.find("animal_url").text(),
category: $this.find("animal_category").text()
};
});
}
function createMenu($data) {
var categories = {};
$data.each(function (i, dataItem) {
if (typeof categories[dataItem.category] === 'undefined') {
categories[dataItem.category] = [];
}
categories[dataItem.category].push(dataItem);
});
$.each(categories, function (category, categoryItems) {
var categoryItems = categories[category];
$menu.append($('<h2>').text(category));
$menu.append(createList(categoryItems));
});
}
function createList(categoryItems) {
var $list = $('<ul>');
$.each(categoryItems, function (i, dataItem) {
$list.append(createItem(dataItem));
});
return $list;
}
function createItem(dataItem) {
return $('<li>').text(dataItem.title);
}
});
You can solve this without using any for/while loop or forEach.
function myCounter(inputWords) {
return inputWords.reduce( (countWords, word) => {
countWords[word] = ++countWords[word] || 1;
return countWords;
}, {});
}
Hope it helps you!
Related
I've done some searching around the web and nothing seems to solve my problem. I have the following jQuery code:
function youtube_data_parser(data) {
//---> parse video data - start
var qsToJson = function(qs) {
var res = {};
var pars = qs.split('&');
var kv, k, v;
for (i in pars) {
kv = pars[i].split('=');
k = kv[0];
v = kv[1];
res[k] = decodeURIComponent(v);
}
return res;
}
//---> parse video data - end
var get_video_info = qsToJson(data);
if (get_video_info.status == 'fail') {
return {
status: "error",
code: "invalid_url",
msg: "check your url or video id"
};
} else {
// remapping urls into an array of objects
//--->parse > url_encoded_fmt_stream_map > start
//will get the video urls
var tmp = get_video_info["url_encoded_fmt_stream_map"];
if (tmp) {
tmp = tmp.split(',');
for (i in tmp) {
tmp[i] = qsToJson(tmp[i]);
}
get_video_info["url_encoded_fmt_stream_map"] = tmp;
}
//--->parse > url_encoded_fmt_stream_map > end
//--->parse > player_response > start
var tmp1 = get_video_info["player_response"];
if (tmp1) {
get_video_info["player_response"] = JSON.parse(tmp1);
}
//--->parse > player_response > end
//--->parse > keywords > start
var keywords = get_video_info["keywords"];
if (keywords) {
key_words = keywords.replace(/\+/g, ' ').split(',');
for (i in key_words) {
keywords[i] = qsToJson(key_words[i]);
}
get_video_info["keywords"] = {
all: keywords.replace(/\+/g, ' '),
arr: key_words
};
}
//--->parse > keywords > end
//return data
return {
status: 'success',
raw_data: qsToJson(data),
video_info: get_video_info
};
}
}
function getVideoInfo() {
var get_video_url = $('#ytdlUrl').val();
var get_video_id = getUrlVars(get_video_url)['v'];
var video_arr_final = [];
var ajax_url = "video_info.php?id=" + get_video_id;
$.get(ajax_url, function(d1) {
var data = youtube_data_parser(d1);
var video_data = data.video_info;
var player_info = data.video_info.player_response;
var video_title = player_info.videoDetails.title.replace(/\+/g, ' ');
var fmt_list = video_data.fmt_list.split(',');
var video_thumbnail_url = video_data.thumbnail_url;
var video_arr = video_data.url_encoded_fmt_stream_map;
//create video file array
$.each(video_arr, function(i1, v1) {
var valueToPush = {};
valueToPush.video_url = v1.url;
valueToPush.video_thumbnail_url = video_thumbnail_url;
valueToPush.video_title = video_title;
$.each(fmt_list, function(i2, v2) {
var fmt = v2.split('/');
var fmt_id = fmt[0];
var fmt_quality = fmt[1];
if (fmt_id == v1.itag) {
valueToPush.fmt_id = fmt_id;
valueToPush.fmt_quality = fmt_quality;
}
});
video_arr_final.push(valueToPush);
});
});
return video_arr_final;
}
function getUrlVars(url) {
var vars = {};
var parts = url.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(m, key, value) {
vars[key] = value;
});
return vars;
}
function fillInOptions(ytOptions) {
//console.log(ytOptions);
//alert(ytOptions[0]);
var ytFill = ytOptions;
console.log(ytFill);
//ytFill.forEach(function(i,v) {
var ytdlOptions = $('#ytdlOptions');
ytFill.forEach(function(i,v) {
console.log(i);
ytdlOptions.append(new Option(v.fmt_quality, v.fmt_id));
});
return true;
}
function showYTDLLoader() {
$('#ytdlInput').fadeOut(1000, function() {
$('#ytdlLoader').fadeIn(500);
});
var options = getVideoInfo();
//console.log(options);
if (fillInOptions(options) == true) {
//do rest
}
}
function showYTDLOptions() {
return true;
}
function startDownload() {
showYTDLLoader();
}
function hideYTDLLoader() {
$('#ytdlLoader').fadeOut(500);
}
function animateCSS(element, animationName, callback) {
const node = $(element);
node.addClass(animationName);
function handleAnimationEnd() {
node.removeClass(animationName);
node.animationend = null;
if (typeof callback === 'function') callback();
}
node.animationend = handleAnimationEnd();
}
When my button is clicked, I call showYTDLLoader() which gets an array of objects from the YouTube API that looks like this:
[
{
"video_url": "https://r7---sn-uxanug5-cox6.googlevideo.com/videoplayback?expire=1572496003&ei=Iw66Xa24H8PL3LUPiN25mAs&ip=2001%3A8003%3A749b%3Aa01%3A5cd8%3Ac610%3A6402%3Ad0fe&id=o-ADsVnoOoBQ6-SWzYZU7gHES06s7xQptJG6hn9WcakITY&itag=22&source=youtube&requiressl=yes&mm=31%2C29&mn=sn-uxanug5-cox6%2Csn-ntqe6n7r&ms=au%2Crdu&mv=m&mvi=6&pl=39&initcwndbps=1655000&mime=video%2Fmp4&ratebypass=yes&dur=917.768&lmt=1572418007364260&mt=1572474311&fvip=4&fexp=23842630&c=WEB&txp=5535432&sparams=expire%2Cei%2Cip%2Cid%2Citag%2Csource%2Crequiressl%2Cmime%2Cratebypass%2Cdur%2Clmt&sig=ALgxI2wwRgIhAIp-4gyUTLoXFetbY0ha_YnR7DJqsp_MNjjIxqDdfPZJAiEA_WPd21jgX9broBcigf8rcSEVoJb2_NX7t3XZQqytsSM%3D&lsparams=mm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&lsig=AHylml4wRAIgacvP3zjEq-rVEZFrX7a_hC6TR-Zab7Ii-Fbaupjs_PcCIHdZht4l4ioYL3ERz7WNiSbnOnhm5iYxEECaQXPP2hUp",
"video_title": "Arnold Schwarzenegger on Son-in-law Chris Pratt, Pranking Sylvester Stallone & Terminator’s Return",
"fmt_id": "22",
"fmt_quality": "1280x720"
},
{
"video_url": "https://r7---sn-uxanug5-cox6.googlevideo.com/videoplayback?expire=1572496003&ei=Iw66Xa24H8PL3LUPiN25mAs&ip=2001%3A8003%3A749b%3Aa01%3A5cd8%3Ac610%3A6402%3Ad0fe&id=o-ADsVnoOoBQ6-SWzYZU7gHES06s7xQptJG6hn9WcakITY&itag=18&source=youtube&requiressl=yes&mm=31%2C29&mn=sn-uxanug5-cox6%2Csn-ntqe6n7r&ms=au%2Crdu&mv=m&mvi=6&pl=39&initcwndbps=1655000&mime=video%2Fmp4&gir=yes&clen=44248820&ratebypass=yes&dur=917.768&lmt=1572416976690256&mt=1572474311&fvip=4&fexp=23842630&c=WEB&txp=5531432&sparams=expire%2Cei%2Cip%2Cid%2Citag%2Csource%2Crequiressl%2Cmime%2Cgir%2Cclen%2Cratebypass%2Cdur%2Clmt&sig=ALgxI2wwRQIhANTZJlBHFWQWCnfK11yvLiPUV26c6NzvqIMKjDwmsByMAiBUSy0ZJMo4GdHSiRU4xBDDLxLtzwKZAqAKCiB-1aViDQ%3D%3D&lsparams=mm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&lsig=AHylml4wRAIgacvP3zjEq-rVEZFrX7a_hC6TR-Zab7Ii-Fbaupjs_PcCIHdZht4l4ioYL3ERz7WNiSbnOnhm5iYxEECaQXPP2hUp",
"video_title": "Arnold Schwarzenegger on Son-in-law Chris Pratt, Pranking Sylvester Stallone & Terminator’s Return",
"fmt_id": "18",
"fmt_quality": "640x360"
}
]
But when I try and loop through each entry with fillInOptions(), my loop is never completed because the length is apparently zero. However, when I dump the array using console.log() it tells me the length is 2, and displays the above. I need to be able to add each option to my dropdown.
Thankyou!
UPDATE: Added full code, sorry!
It looks like your .forEach() is the root of the problem. The parameters of a forEach are currentValue, index like this: array.forEach(function(currentValue, index) {}); but it looks like you're using them in the opposite way
Try rewriting that iteration to this:
ytFill.forEach(function(v, i) {
console.log(i);
ytdlOptions.append(new Option(v.fmt_quality, v.fmt_id));
});
Notice the difference in the order of v and i in the parameters.
How do I put multiple GET's in an array?
I want to start with putting all channelId's in an array like this:
var Channels = [ID1, ID2, ID3];
And then a function with $each... But how to do it? :)
Who can help me please? It will be much appreciated
var ItemArray = [];
var d1 = $.get("https://www.googleapis.com/youtube/v3/search?channelId=UCVQ2Z9dNQ2aJJ10f6SgBH0g&type=video&order=date&maxResults=1&part=snippet&KEY",
function (data) {
$.each(data.items, function (i, item) {
idee = item.id.videoId;
tittie = item.snippet.title;
cattit = item.snippet.channelTitle;
datie = item.snippet.publishedAt;
ItemArray.push([datie, cattit, idee, tittie]);
});
});
var d2 = $.get("https://www.googleapis.com/youtube/v3/search?channelId=UC2xskkQVFEpLcGFnNSLQY0A&type=video&order=date&maxResults=1&part=snippet&KEY",
function (data) {
$.each(data.items, function (i, item) {
idee = item.id.videoId;
tittie = item.snippet.title;
cattit = item.snippet.channelTitle;
datie = item.snippet.publishedAt;
ItemArray.push([datie, cattit, idee, tittie]);
});
});
var d3 = $.get("https://www.googleapis.com/youtube/v3/search?channelId=UCGHi_s4RrqUh4hsS4mLbiPg&type=video&order=date&maxResults=1&part=snippet&key=KEY",
function (data) {
$.each(data.items, function (i, item) {
idee = item.id.videoId;
tittie = item.snippet.title;
cattit = item.snippet.channelTitle;
datie = item.snippet.publishedAt;
ItemArray.push([datie, cattit, idee, tittie]);
});
});
$.when(d1, d2, d3).done(function() {
ItemArray.sort(function(a, b) {
return a[0] - b[0];
});
for(i=0;i<=ItemArray.length;i++){
$('#mytable').append('<tr><td>'+ItemArray[i][0]+'</td><td><a target="_blank" href="https://www.youtube.com/user/'+ItemArray[i][1]+'">'+ItemArray[i][1]+'</a></td><td><a target="_blank" href="https://www.youtube.com/watch?v='+ItemArray[i][2]+'">'+ItemArray[i][3]+'</a></td></tr>');
}
})
})
See example below.
The code is commented an should work as expected.
Ask if any questions.
(function($) {
var ItemArray = [];
// List all IDs here
var ids = ["UCVQ2Z9dNQ2aJJ10f6SgBH0g", "UC2xskkQVFEpLcGFnNSLQY0A", "UCGHi_s4RrqUh4hsS4mLbiPg"];
var done = [];
// Go through all ids
$.each(ids, function(index, value) {
// Save all Deferred in variable done
done.push($.get("https://www.googleapis.com/youtube/v3/search?channelId=" + value + "&type=video&order=date&maxResults=1&part=snippet&KEY", fn)); // use function fn for doing all the time the same
});
function fn(data) {
$.each(data.items, function(i, item) {
idee = item.id.videoId;
tittie = item.snippet.title;
cattit = item.snippet.channelTitle;
datie = item.snippet.publishedAt;
ItemArray.push([datie, cattit, idee, tittie]);
});
}
// to use an array as input for when()
// you need th use the prototype method apply to convert it
$.when.apply($, done).done(function() {
// this part stays the same
ItemArray.sort(function(a, b) {
return a[0] - b[0];
});
for (i = 0; i <= ItemArray.length; i++) {
$('#mytable').append('<tr><td>' + ItemArray[i][0] + '</td><td><a target="_blank" href="https://www.youtube.com/user/' + ItemArray[i][1] + '">' + ItemArray[i][1] + '</a></td><td><a target="_blank" href="https://www.youtube.com/watch?v=' + ItemArray[i][2] + '">' + ItemArray[i][3] + '</a></td></tr>');
}
});
})(jQuery);
So loop over the array and make the ajax calls, pushing the Ajax calls into a new array.
var channels = ["a","b","c"],
calls = channels.reduce( function (arr, current) {
var xhr = $.get("http://example.com?q=" + current, function() { /* your code ajax success*/});
arr.push(xhr);
return arr;
}, []);
//Take that array and apply it to the when
$.when.apply($, calls).done( function () {
//Your code
} )
I have a little piece of code that reads some ajax (this bit works) from a server.
var self = this;
var serverItems = new Array();
var playersOnlineElement = $("#playersOnline");
function DataPair(k, v) {
this.key = k;
console.log("new datapair: " + k + ", " + v);
this.value = v;
}
DataPair.prototype.getKey = function() {
return this.key;
}
DataPair.prototype.getValue = function() {
return this.value;
}
$.getJSON("http://127.0.0.1", function(data) {
$.each(data, function(key, val) {
var pair = new DataPair(key, val);
self.serverItems.push(pair);
});
});
console.log(serverItems.length); //Problem is here
for (var i = 0; i < serverItems.length; i = i + 1) {
var dpair = serverItems[i];
if (dpair.getKey() === "playersOnline") {
self.playersOnlineElement.text("Players Online: " + dpair.getValue());
}
}
The datapair and the JSON get loaded but when they are pushed to the array it doesn't seem to work. I tried with self.serverItems and just serverItems because netbeans showed me the scope of the variables being good if I used just serverItems but I am a bit confused as to why this doesn't work. Can anyone help me?
I put in comments where the error is. serverItems.length is 0 even though when debugging in a browser in the DOM tree it has an array serverItems with all the data inside.
Assumingly this serverItems is in another scope and not the one I am calling when I want to get the length?
add this code into the success part, since its asynchronous...
for (var i = 0; i < serverItems.length; i = i + 1) {
var dpair = serverItems[i];
if (dpair.getKey() === "playersOnline") {
self.playersOnlineElement.text("Players Online: " + dpair.getValue());
}
to...
$.getJSON("http://127.0.0.1", function(data) {
$.each(data, function(key, val) {
var pair = new DataPair(key, val);
self.serverItems.push(pair);
for (var i = 0; i < serverItems.length; i = i + 1) {
var dpair = serverItems[i];
if (dpair.getKey() === "playersOnline") {
self.playersOnlineElement.text("Players Online: " + dpair.getValue());
}
});
});
I'm using this autocomplete code to be able to pull stock information:
var YAHOO = {};
YAHOO.util = {};
YAHOO.util.ScriptNodeDataSource = {};
var stockSymbol;
var compName;
YUI({
filter: "raw"
}).use("datasource", "autocomplete", "highlight", function (Y) {
var oDS, acNode = Y.one("#ac-input");
oDS = new Y.DataSource.Get({
source: "http://d.yimg.com/aq/autoc?query=",
generateRequestCallback: function (id) {
YAHOO.util.ScriptNodeDataSource.callbacks =
YUI.Env.DataSource.callbacks[id];
return "&callback=YAHOO.util.ScriptNodeDataSource.callbacks";
}
});
oDS.plug(Y.Plugin.DataSourceJSONSchema, {
schema: {
resultListLocator: "ResultSet.Result",
resultFields: ["symbol", "name", "exch", "type", "exchDisp"]
}
});
acNode.plug(Y.Plugin.AutoComplete, {
maxResults: 10,
resultTextLocator: "symbol",
resultFormatter: function (query, results) {
return Y.Array.map(results, function (result) {
var asset = result.raw,
text = asset.symbol +
" " + asset.name +
" (" + asset.type +
" - " + asset.exchDisp + ")";
return Y.Highlight.all(text, query);
});
},
requestTemplate: "{query}®ion=US&lang=en-US",
source: oDS
});
acNode.ac.on("select", function (e) {
alert(e.result.raw.name);
stockSymbol = e.result.raw.symbol;
compName = e.result.raw.name;
alert("stockSymbol is "+stockSymbol);
alert("compName is "+compName);
});
});
I have a text field where the text is being entered, then I need to display a few pieces of information based on what was entered:
$(document).ready(function(e) {
//$(".selector").button({icons: {primary: "ui-icon-search"}});
//$(".home").button({icons: {primary: "ui-icon-home"}});
var q = window.location.href.split("?ac-input=");
alert("q is "+q)
if (q && q[1])
$("input").val(q[1]);
alert("what is this?" +q[1]);
runForm();
});
..........
function runForm(){
$("#stock_news").html("");
//var stockSymbol = e.result.raw.symbol;
alert('stockSymbol in runForm is ' +stockSymbol);
alert('compname is runForm is '+compName);
var newsStocks = "http://query.yahooapis.com/v1/public/yql?.......";
$.getJSON(newsStocks, function(data) {
var headlines = data.query.results.a;
newStr = "<h3>Current Headlines</h3>";
newStr += "<ol>";
for(var i=0; i<headlines.length; ++i){
var news = headlines[i];
newStr += "<li><a href='"+news.href+"'>"+news.content+"</a></li>";
}
newStr += "</ol>";
$("#stock_news").html(newStr);
});
htmlStr = '<img src="http://chart.finance.yahoo.com/z?s='+stockSymbol+'&t=5d&q=l&l=off&z=s®ion=US&lang=en-EN"/>';
$("#stock_graph").html(htmlStr);
}
What is happening is, the stockSymbol and compName are correctly set from entering, but for some reason nothing renders on the page, as q is undefined....Any ideas on where I am messing up here?
Figured it out. I needed to call runForm inside the acNode.ac.on("select", function (e)
i got this code
function get_players()
{
$.ajax({
type: "POST",
url: "get_players.php",
dataType: "html",
success: function(data) {
var str = data;
var chars = str.split("<br />");
for(var i = chars.length - 1; i >= 0 ;i-- ) {
chars[i] = chars[i].split('/');
var o = document.getElementById(chars[i][0]);
var aimt = i;
if (!o) {
if (aimt!=chars.length -1) {
$('#gracze').html('<div id="'+chars[aimt][0]+'" class="char"><div id="char_name" style="left:-'+(((chars[aimt][3].length*9)/2)-16)+'px;width:'+(chars[aimt][3].length*9)+'px;">'+chars[aimt][3]+'</div></div>'+$('#gracze').html());
$('#'+chars[aimt][0]).css("top", chars[aimt][2]*32-16+"px");
$('#'+chars[aimt][0]).css("left", chars[aimt][1]*32+"px");
$('#'+chars[aimt][0]).css("z-index", chars[aimt][2]+1);
}
} else {
$('#'+chars[aimt][0]).animate({
"top": chars[aimt][2]*32-16+"px", "left": chars[aimt][1]*32+"px"
}, { duration: 300});
//$('#'+chars[aimt][0]).css("top", chars[aimt][1]*32-16+"px");
//$('#'+chars[aimt][0]).css("left", chars[aimt][2]*32+"px");
$('#'+chars[aimt][0]).css("z-index", chars[aimt][2]);
}
}
}});
setTimeout("get_players();", 300);
}
which receives players from this
5/7/13/GodFather
6/7/10/dsfsf
7/8/13/fdsf
and i want to ask how to delete div if there's no info about user
As you don't know which div elements to remove, the only way is removing them all then adding those you get from the AJAX response.
To remove them all, use the class that you already have:
$(".char").remove();
Add this line to the success function, before iterating over the lines.
OK, you can save the ID values returned by the AJAX call in array then remove any that does not exist in the array. Revised function code:
success: function(data) {
var str = data;
var chars = str.split("<br />");
var arrDivIDs = new Array();
for(var i = chars.length - 1; i >= 0 ;i-- ) {
chars[i] = chars[i].split('/');
arrDivIDs[chars[i][0]] = true;
var o = document.getElementById(chars[i][0]);
var aimt = i;
if (!o) {
if (aimt!=chars.length -1) {
$('#gracze').html('<div id="'+chars[aimt][0]+'" class="char"><div id="char_name" style="left:-'+(((chars[aimt][3].length*9)/2)-16)+'px;width:'+(chars[aimt][3].length*9)+'px;">'+chars[aimt][3]+'</div></div>'+$('#gracze').html());
$('#'+chars[aimt][0]).css("top", chars[aimt][2]*32-16+"px");
$('#'+chars[aimt][0]).css("left", chars[aimt][1]*32+"px");
$('#'+chars[aimt][0]).css("z-index", chars[aimt][2]+1);
}
} else {
$('#'+chars[aimt][0]).animate({
"top": chars[aimt][2]*32-16+"px", "left": chars[aimt][1]*32+"px"
}, { duration: 300});
$('#'+chars[aimt][0]).css("z-index", chars[aimt][2]);
}
}
$(".char").each(function(index) {
if (!arrDivIDs[$(this).attr("id")])
$(this).remove();
});
}
Use .remove() http://api.jquery.com/remove/
EDIT
Where you have the check to see whether there is any data coming back (assume var o) you can do this:
o.remove();
EDIT 2
You can use variables in jQuery to select the id:
$("#" + chars[i][0]).remove();