Splice array on click - javascript - javascript

I have a type of newsfeed wall like Facebook were you can create posts. I want when I click on the glyphicon in my post to remove that certain post.
The code is:
function loadPosts(){
$('#allPosts').empty();
for (var i = 0; i < aPosts.length; i++){
var postData = aPosts[i];
var comments ="";
for (var j = 0; j < postData.comments.length; j++ )
{
comments += '<p class="myComment">' + postData.comments[j].from + '<strong>says: </strong>'+ postData.comments[j].text +'</p>';
}
$('#allPosts').prepend('<div data-postId="'+i+'"class="wrapPost"><span class="glyphicon glyphicon-remove"></span>' +
postData.from +' '+'' +
'<strong>wrote :</strong>'+
'<li>' + postData.text + '</li>' + comments +
'<input type=text class=commentBox placeholder=Comment..>' +
'<button data-postId="'+i+'" class="postComment">Post</button></div>');
$('.glyphicon-remove').click(function() {
var postId = $(this).parent().attr('data-postId');
console.log(postId);
aPosts.splice(i, 1);
});
}
}
When I console log "postId" it tells me that I am at least clicking the right post, but it wont delete it from localStorage.

Related

Jquery .each not working for first row from the table

I am using jquery .each to loop the values and push in JSON. it is working for all the rows leaving the first row.
for (j = 0; j < parsedResult.length; j++) {
var pack_id = parsedResult[j].pack_id;
var pack_dsc = parsedResult[j].pack_dsc;
var pack_base_amount = parsedResult[j].pack_base_prc;
var pack_tax_amount = parsedResult[j].pack_tax_amt;
var pack_grand_total = parsedResult[j].pack_grand_total;
row += "<span id='single_pack_details'><span id='pack_id' class='hidden'>" + pack_id + "</span><b>Pack description: </b><span id='pack_dsc'>" + pack_dsc + "</span><b>Pack Amount:</b> ₹ <span id='pack_grand_total'>" + pack_grand_total + "</span></div><span class='hidden' id='pack_base_amount'>" + pack_base_amount + "</span><span class='hidden' id='pack_tax_amount'>" + pack_tax_amount + "</span></span>";
}
Below is where i trying to put it in a loop and pushing to pack_details object
$(this).closest("tr").find('#single_pack_details').each(function () {
var obj = {
pack_id: $(this).closest("span").find("#pack_id").text(),
pack_dsc: $(this).closest("span").find("#pack_dsc").text(),
pack_grand_total: $(this).closest("span").find("#pack_grand_total").text(),
pack_base_amount: $(this).closest("span").find("#pack_base_amount").text(),
pack_tax_amount: $(this).closest("span").find("#pack_tax_amount").text()
}
pack_details.push(obj);

Array list display online one result from json

I wrote this code and it works:
function getJsonResult(retrieve) {
var result = retrieve.results;
for (var i = 0; i < result.length; i++) {
responseJson.push({ id: result[i].id, title: result[i].title });
var search = '<a id="' + result[i].id + '">' + result[i].title + '</a><br/>';
document.write(search);
}
}
When I tried to display the results in a div, I change the last line with:
$("#divId").html(search);
But it only displays the first result. How can I make the whole list appear?
That happened because you're overriding the search variable in every iteration :
var search = '<a id="' + result[i].id + '">' + result[i].title + '</a><br/>';
You need to declare the search variable outside of the loop then append the string in every iteration like :
function getJsonResult(retrieve) {
var result = retrieve.results;
var search = "";
___________^^^^
for (var i = 0; i < result.length; i++) {
responseJson.push({ id: result[i].id, title: result[i].title });
var search += '<a id="' + result[i].id + '">' + result[i].title + '</a><br/>';
___________^^
document.write(search);
}
}
Then finally you could put your variable content to the div :
$("#divId").html(search);
$('#divId').append(search);
This appends the element included in search to the div element.

Only show objects in array that contain a specific string

I was trying to make something where you can type a string, and the js only shows the objects containing this string. For example, I type Address1 and it searches the address value of each one then shows it (here: it would be Name1). Here is my code https://jsfiddle.net/76e40vqg/11/
HTML
<input>
<div id="output"></div>
JS
var data = [{"image":"http://www.w3schools.com/css/img_fjords.jpg","name":"Name1","address":"Address1","rate":"4.4"},
{"image":"http://shushi168.com/data/out/114/38247214-image.png","name":"Name2","address":"Address2","rate":"3.3"},
{"image":"http://www.menucool.com/slider/jsImgSlider/images/image-slider-2.jpg","name":"Name3","address":"Address3","rate":"3.3"}
];
var restoName = [], restoAddress = [], restoRate = [], restoImage= [];
for(i = 0; i < data.length; i++){
restoName.push(data[i].name);
restoAddress.push(data[i].address);
restoRate.push(data[i].rate);
restoImage.push(data[i].image);
}
for(i = 0; i < restoName.length; i++){
document.getElementById('output').innerHTML += "Image : <a href='" + restoImage[i] + "'><div class='thumb' style='background-image:" + 'url("' + restoImage[i] + '");' + "'></div></a><br>" + "Name : " + restoName[i] + "<br>" + "Address : " + restoAddress[i] + "<br>" + "Rate : " + restoRate[i] + "<br>" + i + "<br><hr>";
}
I really tried many things but nothing is working, this is why I am asking here...
Don't store the details as separate arrays. Instead, use a structure similar to the data object returned.
for(i = 0; i < data.length; i++){
if (data[i].address.indexOf(searchedAddress) !== -1) { // Get searchedAddress from user
document.getElementById("output").innerHTML += data[i].name;
}
}
Edits on your JSFiddle: https://jsfiddle.net/76e40vqg/17/
Cheers!
Here is a working solution :
var data = [{"image":"http://www.w3schools.com/css/img_fjords.jpg","name":"Name1","address":"Address1","rate":"4.4"},
{"image":"http://shushi168.com/data/out/114/38247214-image.png","name":"Name2","address":"Address2","rate":"3.3"},
{"image":"http://www.menucool.com/slider/jsImgSlider/images/image-slider-2.jpg","name":"Name3","address":"Address3","rate":"3.3"}
];
document.getElementById('search').onkeyup = search;
var output = document.getElementById('output');
function search(event) {
var value = event.target.value;
output.innerHTML = '';
data.forEach(function(item) {
var found = false;
Object.keys(item).forEach(function(val) {
if(item[val].indexOf(value) > -1) found = true;
});
if(found) {
// ouput your data
var div = document.createElement('div');
div.innerHTML = item.name
output.appendChild(div);
}
});
return true;
}
<input type="search" id="search" />
<div id="output"></div>

Facebook Graph API response javascript

I want to get name and picture of every friend. please tell me how can i handle this. I am getting no row and finding an error "Uncaught TypeError: Cannot set property 'innerHTML' of null"
FB.api('/me/friends','GET',{"fields":"id,name,email,picture.height(500)"},
function(response) {
console.log(response.total_count);
var result_holder = document.getElementById('result_friends');
// var friend_data = response.data.sort();//sort(sortMethod);
var results = '';
document.getElementById('friends_data').innerHTML = 'Name :::' + response.name;
for (var i = 0; i < friend_data.length; i++) {
console.log(i + results);
results += '<div><img src="https://graph.facebook.com/' + friend_data[i].id + '/picture">' + friend_data[i].name + '</div>';
}
// and display them at our holder element
result_holder.innerHTML = '<h2>Result list of your friends:</h2>' + results;});
This line is wrong: document.getElementById('friends_data').innerHTML = 'Name :::' + response.name;
There will be an array in response (response.data), and in that array there will be the friends with their names.
Remove the line and use the for loop like this:
for (var i = 0; i < response.data.length; i++) {
results += '<div><img src="https://graph.facebook.com/' + response.data[i].id + '/picture">' + response.data[i].name + '</div>';
}
Or, since you already get the picture URL in the response, try this:
for (var i = 0; i < response.data.length; i++) {
results += '<div><img src="' + response.data[i].picture.data.url + '">' + response.data[i].name + '</div>';
}
Btw, it is better to just debug with console.log(response) at the beginning of the callback, so you can see what exactly is in the response. Just saying.

Uncaught ReferenceError: variable is not defined on onclick function Javascript

Today , i have been read all the topic about this but couldn't come up with a solution that's why i am opening this topic.
This is my function which creates the view and i am trying to have a onclick function which should directs to other javascript function where i change the textbox value.
<script type="text/javascript">
$('#submitbtnamazon')
.click(function(evt) {
var x = document.getElementById("term").value;
if (x == null || x == "" || x == "Enter Search Term") {
alert("Please, Enter The Search Term");
return false;
}
listItems = $('#trackList').find('ul').remove();
var searchTerm = $("#term").val();
var url = "clientid=Shazam&field-keywords="
+ searchTerm
+ "&type=TRACK&pagenumber=1&ie=UTF8";
jsRoutes.controllers.AmazonSearchController.amazonSearch(url)
.ajax({
success : function(xml) {
$('#trackList')
.append('<ul data-role="listview"></ul>');
listItems = $('#trackList').find('ul');
html = ''
tracks = xml.getElementsByTagName("track");
for(var i = 0; i < tracks.length; i++) {
var track = tracks[i];
var titles = track.getElementsByTagName("title");
var artists = track.getElementsByTagName("creator");
var albums = track.getElementsByTagName("album");
var images = track.getElementsByTagName("image");
var metaNodes = track.getElementsByTagName("meta");
//trackId ="not found";
trackIds = [];
for (var x = 0; x < metaNodes.length; x++) {
var name = metaNodes[x]
.getAttribute("rel");
if (name == "http://www.amazon.com/dmusic/ASIN") {
trackId = metaNodes[x].textContent;
trackIds.push(trackId);
}
}
for (var j = 0; j < titles.length; j++) {
var trackId=trackIds[j];
html += '<div class="span3">'
html += '<img src="' + images[j].childNodes[0].nodeValue + '"/>';
html += '<h6><a href="#" onclick="someFunction('
+trackId
+ ')">'
+trackId
+ '</a></h6>';
html += '<p><Strong>From Album:</strong>'
+ albums[j].childNodes[0].nodeValue
+ '</p>';
html += '<p><Strong>Artist Name:</strong>'
+ artists[j].childNodes[0].nodeValue
+ '</p>';
html += '<p><Strong>Title:</strong>'
+ titles[j].childNodes[0].nodeValue
+ '</p>';
/*html += '<p><Strong>Created:</strong>'
+ releaseDate
+ '</p>';*/
html += '</div>'
}
}
//listItems.append( html );
$("#track").html(html);
$("#track").dialog({
height : 'auto',
width : 'auto',
title : "Search Results"
});
// Need to refresh list after AJAX call
$('#trackList ul').listview(
"refresh");
}
});
});
</script>
This is my other function where i change the textbox value. it works actually with other values e.g. when i give hardcoded string value. I can see the value in the console but for some reason it gives me the error like :
here the string starts with B is AsinId where i take from amazon. I am definitely in need of help because i am totally stucked.
Uncaught ReferenceError: B00BMQRILU is not defined 62594001:1 onclick
<script type="text/javascript">
function someFunction(var1) {
tracktextbox = document.getElementsByName("trackId");
for (var i = 0; i < tracktextbox.length; i++) {
tracktextbox[i].value = var1;
}
$('#track').dialog('close');
}
</script>
The problem is '<h6><a href="#" onclick="someFunction('+trackId+ ')">', from the error it is clear that trackId is a string value, so you need to enclose it within "" or ''. So try
'<h6><a href="#" onclick="someFunction(\'' + trackId + '\')">'

Categories