The Idea is to load only 50 items at a time to help with loading the page.
I have the code that will load the first 50 items form a json file.
I then want to load the next 50 when the user scrolls halfway down the page and keep going tell there is no more items to load.
This is what I have so far.
//This loads the first 50 items from external Json file. No issue here
$(window).load(function(){
var picarioAPI = "https://sdlbytheyard.picarioxpo.com/xpo/api/v1/designs/search/Customizable&Customizable/?apiKey=f02ac05d0a664db08274c7d7c4c0b594&skip=0&take=50";
var newtext = document.getElementById("DeisgnLibraryPopupButtom").innerHTML
$.getJSON(picarioAPI, function (json) {
var text = "";
for (i in json.values)
for (var j in json.values[i].labels) {
if (json.values[i].labels[j].name == "Show") {
// This is for a popup function.
var b = 'data-options={"src": "#hidden-content-3'+json.values[i].id+'", "touch": false}';
text += '<div class="prod" style="float:left;"><a data-fancybox ' + b + ' href="javascript:;" onclick="test()"><img class="lazyload" src="' + json.values[i].displayUrl + '"><p class="title">' + json.values[i].name + '</p></a></div><div style="display: none;max-width:500px;" id="hidden-content-3'+json.values[i].id+'"><img class="lazyload" src="' + json.values[i].displayUrl + '" data-height="'+json.values[i].height+'"data-width="'+json.values[i].width+'"data-url="'+json.values[i].displayUrl+'"data-full="'+json.values[i].renderUrl +'"data-name="'+json.values[i].name+'"><p class="title">' + json.values[i].name + '</p>' + newtext + '</div>';
document.getElementById("design1").innerHTML = text;
}
};
});
});
I then load a scroll function to load the next 50 items and so on. I use the number to add 50 items to the end of the Json file API
//This is the part I'm not getting correct.
var number = 0;
$(window).scroll(function () {
if ($(window).scrollTop() > $('body').height() / 2) {
number++;
// I use the number to dynamically load the next 50 items as the user scrolls.
var total = number + 50;
var picarioAPI = 'https://sdlbytheyard.picarioxpo.com/xpo/api/v1/designs/search/Customizable&Customizable/?apiKey=f02ac05d0a664db08274c7d7c4c0b594&skip='+total+'&take=50';
var newtext = document.getElementById("DeisgnLibraryPopupButtom").innerHTML
$.getJSON(picarioAPI, function (json) {
var text = "";
for (i in json.values)
for (var j in json.values[i].labels) {
if (json.values[i].labels[j].name == "Show") {
//this is for a popup function
var b = 'data-options={"src": "#hidden-content-3'+json.values[i].id+'", "touch": false}';
text += '<div class="prod" style="float:left;"><a data-fancybox ' + b + ' href="javascript:;" onclick="test()"><img class="lazyload" src="' + json.values[i].displayUrl + '"><p class="title">' + json.values[i].name + '</p></a></div><div style="display: none;max-width:500px;" id="hidden-content-3'+json.values[i].id+'"><img class="lazyload" src="' + json.values[i].displayUrl + '" data-height="'+json.values[i].height+'"data-width="'+json.values[i].width+'"data-url="'+json.values[i].displayUrl+'"data-full="'+json.values[i].renderUrl +'"data-name="'+json.values[i].name+'"><p class="title">' + json.values[i].name + '</p>' + newtext + '</div>';
document.getElementById("design1").innerHTML += document.getElementById("design1").innerHTML + text;
}
};
});
};
});
The issue is when I scroll halfway down the page it will start to load all 2000 items instead of just the next 50.
Any help would be great.
unless you stop scrolling EXACTLY when you've reached half way, you'll be getting multiple triggers of scroll - you need to introduce some flag to indicate that a request is in flight, and ignore the scroll event until the new data is loaded
var inflight = false;
var number = 0;
$(window).scroll(function() {
if (!inflight && $(window).scrollTop() > $('body').height() / 2) {
inflight = true;
number++;
// I use the number to dynamically load the next 50 items as the user scrolls.
var total = number + 50;
var picarioAPI = 'https://sdlbytheyard.picarioxpo.com/xpo/api/v1/designs/search/Customizable&Customizable/?apiKey=f02ac05d0a664db08274c7d7c4c0b594&skip=' + total + '&take=50';
var newtext = document.getElementById("DeisgnLibraryPopupButtom").innerHTML
$.getJSON(picarioAPI, function(json) {
var text = "";
for (i in json.values) {
for (var j in json.values[i].labels) {
if (json.values[i].labels[j].name == "Show") {
//this is for a popup function
var b = 'data-options={"src": "#hidden-content-3' + json.values[i].id + '", "touch": false}';
text += '<div class="prod" style="float:left;"><a data-fancybox ' + b + ' href="javascript:;" onclick="test()"><img class="lazyload" src="' + json.values[i].displayUrl + '"><p class="title">' + json.values[i].name + '</p></a></div><div style="display: none;max-width:500px;" id="hidden-content-3' + json.values[i].id + '"><img class="lazyload" src="' + json.values[i].displayUrl + '" data-height="' + json.values[i].height + '"data-width="' + json.values[i].width + '"data-url="' + json.values[i].displayUrl + '"data-full="' + json.values[i].renderUrl + '"data-name="' + json.values[i].name + '"><p class="title">' + json.values[i].name + '</p>' + newtext + '</div>';
document.getElementById("design1").innerHTML += document.getElementById("design1").innerHTML + text;
}
}
}
inflight = false;
});
}
});
Related
I have six static html questions and then 3-4 questions being generated by JSON dynamically based upon a form choice made on a page before. What I'm trying to do is generate the questions, then create a progress bar based on the final number of questions created. Where I'm having trouble is using the jQuery when done method after my each loop. It is firing after the first iteration instead of the last. I have tried populating an array "Qs" and passing the array, after reading some other posts, but what I have hasn't worked. I would really like to segment my code and clean it up as much as possible, so I'm trying to stay away from nesting it.
var Qs = [];
var generateQs = function (){
var $dept = sessionStorage.getItem("sFGeneralDepartment1");
var $qWrapper = $("#assessmentTool");
$.getJSON("js/dept-questions.json", function(data) {
var key = $dept;
var vals = [];
switch(key) {
case 'Information technology':
vals = data.IT;
break;
case 'Finance':
vals = data.FIN;
break;
case 'Human resources':
vals = data.HR;
break;
case 'Marketing':
vals = data.MKT;
break;
default:
vals = data.OT;
break;
}
$.each(vals, function(index, value) {
var $cleanID = (value.qID).replace(/q/g, '');
$qWrapper.append('<div class="question-container rangeIcon disabled" id="' + value.qID + '"><p>Question ' + $cleanID +'</p> <h4>' + value.questionText + '</h4><ul class="answer-container"></ul></div>');
$.each(value.answers, function(i, answer) {
var $aID = answer.aID;
var $radioBtn = '<div class="radioBtn"><span class="radioBtnInner"></span></div>';
$('.question-container#' + value.qID + ' .answer-container').append('<li class="survey-item"><div class="icon-holder" id="' + $aID + '"><img src="img/' + answer.iconFileName + '" width="' + answer.iconWidth +'" height="'+ answer.iconHeight + '"/></div><input type="radio" id="'+ $aID + '" value="' + answer.pointValue + '"><label for="' + $aID + '" class="radio" data-popover="'+ answer.popoverText + '">' + $radioBtn + '<span class="labelTopText">' + answer.labelTopText + '<span class="divider">/</span></span><span class="labelBottomText">' + answer.labelBottomText + '</span></label></li>');
});
Qs.push($cleanID);
});
console.log('done');
console.log(Qs);
});
};
$.when(generateQs($,Qs)).done(function() {
//create progress bar
console.log('starting');
var qCount = ($('.question-container').length + 1);
var qList = $('#progressBar');
for (var i = 0; i < qCount; i++){
qList.append('<li class="progress-bar-steps" data-item="q' + (i+1) + '">' + '<span class="step-text">' + (i+1) + '</span>' + '</li>');
$('.question-container').each(function (i, value){
var qId = $(this).attr('id');
if ($(this).hasClass("active")) {
$(this).css('opacity','1.0');
$('#progressBar').find("[data-item='" + qId + "']").addClass('active').html('<span class="step-text">' + (i+1) + '</span>');
$('.progress-bar-steps.active').next('.progress-bar-steps').addClass('next disabled-next').html('<span class="step-text">' + (i+2) + '</span>');
} else {
$(this).addClass('disabled');
}
});
}
});
I have code below that renders a few products on a page. Each of these products shares the same data attribute "data-item-upc". There is also a button that is rendered for each product on the page (6 total buttons to be exact). They all share this same data-item-upc data attribute.
I am able to successfully grab the value of the data atrribute and match it to the item with the same UPC value in the second database. But for some reason only the first button works and shows the modal. Not sure whats going on. Hoping someone can help me out would really appreciate it.
//declare variable to store JSON data
var product_data = {};
var nutritional_data = {};
$(document).ready(function() {
'use strict';
//grab product data
$.ajax({
dataType: "jsonp",
url: 'path to URL',
cache: true,
success: function(data){
//assign JSON to product data variable
product_data = JSON.parse(JSON.stringify(data).replace(/"\s+|\s+"/g,'"'));
//grab nutrional data
$.ajax({
dataType: "jsonp",
url: 'path to URL',
cache: true,
success: function(json){
//assign JSON to product data variable
nutritional_data = JSON.parse(JSON.stringify(json).replace(/"\s+|\s+"/g,'"'));
//declare divs to store data
var productDivOne = '';
var productDivTwo = '';
$.each(product_data, function(i, item) {
//convert JSON strings to uppercase for comparison
var brandLetter = item.itemBrandLetter.toUpperCase();
var foodService = item.itemDeli.toUpperCase();
var brandItem = item.itemName;
if (brandLetter == "LB" && foodService == "N") {
if (brandItem.indexOf("Panettone") >= 0) {
productDivOne +=
'<div class="item col-xs-12 col-sm-4 col-md-4 col-lg-4">' +
'<div class="thumbnail">' +
'<img class="scale-down-seperate-prods" src="' + item.imageURL + '" alt="' + item.itemName + '" />' +
'<div class="caption">' + '<br>' +
'<h3 class="group inner list-group-item-heading">' + item.itemName + '</h3>' +
'<h4 class="group inner list-group-item-text">' + item.itemFullUPC.slice(1, -1) + ' • ' + item.itemPackSize.toLowerCase().substring(item.itemPackSize.lastIndexOf("/") + 1) + '</h4>' +
'<button type="button" class="btn btn-info btn-lg showNutritionFacts" data-item-upc="' + item.itemFullUPC + '" value="itemFullUPC">Nutrition Facts</button>' +
'</div>' +
'</div>' +
'</div>';
}
if (brandItem.indexOf("Egg") >= 0) {
productDivTwo +=
'<div class="item col-xs-12 col-sm-4 col-md-4 col-lg-4">' +
'<div class="thumbnail">' +
'<img class="scale-down-seperate-prods" src="' + item.imageURL + '" alt="' + item.itemName + '" />' +
'<div class="caption">' + '<br>' +
'<h3 class="group inner list-group-item-heading">' + item.itemName + '</h3>' +
'<h4 class="group inner list-group-item-text">' + item.itemFullUPC.slice(1, -1) + ' • ' + item.itemPackSize.toLowerCase().substring(item.itemPackSize.lastIndexOf("/") + 1) + '</h4>' +
'<button type="button" class="btn btn-info btn-lg showNutritionFacts" data-item-upc="' + item.itemFullUPC + '" value="itemFullUPC">Nutrition Facts</button>' +
'</div>' +
'</div>' +
'</div>';
}
}
});
//show nutritional information on button click
$("body").on('click', ".showNutritionFacts", function(event){
//get passed data from other function
var clickedItemUPC = $(this).data('item-upc');
alert(clickedItemUPC);
//declare variables to store data
var servingSize = '';
var servingPerContainer = '';
var calories = '';
var caloriesFat = '';
var totalFatGrams = '';
var totalFatPercentage = '';
var saturatedFatGrams = '';
var saturatedFatPercentage = '';
var transFatGrams = '';
var polyunsaturatedFatGrams = '';
var monounsaturatedFatGrams = '';
var cholesterolGrams = '';
var cholesterolPercentage = '';
var sodiumGrams = '';
var sodiumPercentage = '';
var totalCarbohydrateGrams = '';
var totalCarbohydratePercentage = '';
var dietaryFiberGrams = '';
var dietaryFiberPercentage = '';
var sugarGrams = '';
var sugarGramsAdded = '';
var sugarGramsAddedPercentage = '';
var proteinGrams = '';
var vitaminAPercentage = '';
var vitaminCGrams = '';
var vitaminCPercentage = '';
var vitaminDGrams = '';
var vitaminDPercentage = '';
var calciumGrams = '';
var calciumPercentage = '';
var ironGrams = '';
var ironPercentage = '';
var potassiumGrams = '';
var potassiumPercentage = '';
var thiamineGrams = '';
var thiaminePercentage = '';
var riboflavinGrams = '';
var riboflavinPercentage = '';
var niacinGrams = '';
var niacinPercentage = '';
var ingredients = '';
//comparison UPC variable
var compareNutUPC;
$.each(nutritional_data, function (i, item) {
//assign comparison UPC to itemNum
compareNutUPC = item.itemNum;
//compare product UPC in nutritional and product data
if (clickedItemUPC == compareNutUPC) {
servingSize += item.servingSize;
servingPerContainer += item.itemServings;
calories += item.itemCalories;
caloriesFat += item.itemCaloriesFromFat;
transFatGrams += item.itemTransFat + 'g';
polyunsaturatedFatGrams += item.itemPolyUnsatFat + 'g';
monounsaturatedFatGrams += item.itemMonoUnsatFat + 'g';
saturatedFatGrams += item.itemSaturFat + 'g';
saturatedFatPercentage += item.itemSaturFatPerc + '%';
totalFatGrams += item.itemTotalFat + 'g';
totalFatPercentage += item.itemTotalFatPerc + '%';
cholesterolGrams += item.itemCholesterol + 'mg';
cholesterolPercentage += item.itemCholesterolPerc + '%';
sodiumGrams += item.itemSodium + 'mg';
sodiumPercentage += item.itemSodiumPerc + '%';
totalCarbohydrateGrams += item.itemTotalCarb + 'g';
totalCarbohydratePercentage += item.itemTotalCarbPerc + '%';
sugarGrams += item.itemSugars + 'g';
sugarGramsAdded += item.itemSugarsAdded + 'g';
sugarGramsAddedPercentage += item.itemSugarsAddedPerc + '%';
dietaryFiberGrams += item.itemDietFiber + 'g';
dietaryFiberPercentage += item.itemDietFiberPerc + '%';
proteinGrams += item.itemProtein + 'g';
vitaminAPercentage += item.itemVitaminA + '%';
vitaminCPercentage += item.itemVitaminC + '%';
vitaminDGrams += item.itemVitaminDMeasure;
vitaminDPercentage += item.itemVitaminD + '%';
calciumGrams += item.itemCalciumMeasure;
calciumPercentage += item.itemCalcium + '%';
ironGrams += item.itemIronMeasure;
ironPercentage += item.itemIron + '%';
thiaminePercentage += item.itemThiamin + '%';
riboflavinPercentage += item.itemRiboflavin + '%';
niacinPercentage += item.itemNiacin + '%';
potassiumGrams += item.itemPotassium;
potassiumPercentage += item.itemPotassiumPerc + '%';
ingredients += item.itemIngredients;
}
});
$(".servingSize").html(servingSize.replace(/\s+(?=g)/g, '').toLowerCase());
$(".servingPerContainer").html(servingPerContainer);
$(".calories").html(calories);
$(".caloriesFat").html(caloriesFat);
$(".transFatGrams").html(transFatGrams);
$(".polyunsaturatedFatGrams").html(polyunsaturatedFatGrams);
$(".monounsaturatedFatGrams").html(monounsaturatedFatGrams);
$(".saturatedFatGrams").html(saturatedFatGrams);
$(".saturatedFatPercentage").html(saturatedFatPercentage);
$(".totalFatGrams").html(totalFatGrams);
$(".totalFatPercentage").html(totalFatPercentage);
$(".cholesterolGrams").html(cholesterolGrams);
$(".cholesterolPercentage").html(cholesterolPercentage);
$(".sodiumGrams").html(sodiumGrams);
$(".sodiumPercentage").html(sodiumPercentage);
$(".totalCarbohydrateGrams").html(totalCarbohydrateGrams);
$(".totalCarbohydratePercentage").html(totalCarbohydratePercentage);
$(".sugarGrams").html(sugarGrams);
$(".sugarGramsAdded").html(sugarGramsAdded);
$(".sugarGramsAddedPercentage").html(sugarGramsAddedPercentage);
$(".dietaryFiberGrams").html(dietaryFiberGrams);
$(".dietaryFiberPercentage").html(dietaryFiberPercentage);
$(".proteinGrams").html(proteinGrams);
$(".vitaminAPercentage").html(vitaminAPercentage);
$(".vitaminCPercentage").html(vitaminCPercentage);
$(".vitaminDGrams").html(vitaminDGrams);
$(".vitaminDPercentage").html(vitaminDPercentage);
$(".calciumGrams").html(calciumGrams);
$(".calciumPercentage").html(calciumPercentage);
$(".ironGrams").html(ironGrams);
$(".ironPercentage").html(ironPercentage);
$(".thiaminePercentage").html(thiaminePercentage);
$(".riboflavinPercentage").html(riboflavinPercentage);
$(".niacinPercentage").html(niacinPercentage);
$(".potassiumGrams").html(potassiumGrams);
$(".potassiumPercentage").html(potassiumPercentage);
$(".ingredients").html(ingredients.toUpperCase());
//determine which modal to show
if ($('.vitaminDGrams:contains("mcg")').length > 0 && $('.calciumGrams:contains("mg")').length > 0 && $('.ironGrams:contains("mg")').length > 0) {
$('.nutritionPopupAlternate').modal('show');
} else if (servingSize == 0) {
$('.nutritionPopupNoInfo').modal('show');
} else {
$('.nutritionPopupStandard').modal('show');
}
});
//append to appropriate div
$('#productDivOne').html(productDivOne);
$('#productDivTwo').html(productDivTwo);
}
});
//end of prod data
}
});
//end of nut data
});
Thanks to Sandy i was able to minify my code and find the issue. Turns out it was looking for something that was added later from a different source code that I took, after editing the DIV it works perfectly now.
I'm trying to build viewer that pulls from the twitch API to show which channels are online / offline.
I have 3 buttons: All (displays online and offline results), Online(displays only online results), and Offline (you guessed it...displays only offline results).
My code to display all results is as follows:`
var getAll = function () {
$(".twitch-viewer-information").empty()
twitchUsernames.forEach(function (elem) {
$.when($.getJSON(twitchApi + elem + apiCallback), $.getJSON(twitchStreamApi + elem + apiCallback)).done(function(data1,data2) {
var twitchChannel = elem;
var twitchLogo = data1[0].logo ? data1[0].logo : "https://www.skillsilo.com/images/profile-photo-default-256.png";
var twitchStatus = checkStatus(data2);
var twitchUrl = data1[0].url;
var twitchStreamMessage = data2[0].stream ? data2[0].stream.channel.status.substring(0,33)+"..." : "";
tableRow =$(
'<tr class="twitch-viewer-channel-data" data-href="'+ twitchUrl +'">' +
'<td class="channel-pic"> <img class="channel-image" src="' + twitchLogo + '"</td>' +
'<td class="twitch-viewer-channel-name">' + twitchChannel + '<br> <span class="twitch-stream-message">' + twitchStreamMessage +'</span></td>' +
'<td class="twitch-viewer-channel-status">' + twitchStatus + '</td>' +
'<tr>'
);
$(".twitch-viewer-information").append(tableRow);
tableRow.click(function() {
window.location.href = $(this).data("href");
});
});
});
}
I'd like to now build a function that only returns the channels that are online, using as little code as possible. I have been rewriting the entire function, along with an if statement at the end to accomplish this...but there has got to be a simpler way:
var getOnline = function () {
$(".twitch-viewer-information").empty()
twitchUsernames.forEach(function (elem) {
$.when($.getJSON(twitchApi + elem + apiCallback), $.getJSON(twitchStreamApi + elem + apiCallback)).done(function(data1,data2) {
var twitchChannel = elem;
var twitchLogo = data1[0].logo ? data1[0].logo : "https://www.skillsilo.com/images/profile-photo-default-256.png";
var twitchStatus = checkStatus(data2);
var twitchUrl = data1[0].url;
var twitchStreamMessage = data2[0].stream ? data2[0].stream.channel.status.substring(0,33)+"..." : "";
tableRow =$(
'<tr class="twitch-viewer-channel-data" data-href="'+ twitchUrl +'">' +
'<td class="channel-pic"> <img class="channel-image" src="' + twitchLogo + '"</td>' +
'<td class="twitch-viewer-channel-name">' + twitchChannel + '<br> <span class="twitch-stream-message">' +twitchStreamMessage +'</span></td>' +
'<td class="twitch-viewer-channel-status">' + twitchStatus + '</td>' +
'<tr>'
);
if(twitchStatus === "Online") {
$(".twitch-viewer-information").append(tableRow);
tableRow.click(function() {
window.location.href = $(this).data("href");
});
}
});
});
}
What is the shortest amount of code that I can user to duplicate my getAll function, while allowing me to filter for just the twitchStatus's that are online?
I have issues when trying to display a YouTube file using the fancybox iframe. It displays a small frame with a scroller. I have attached a link to the code. I am using the YouTube API to extract the content.
https://jsfiddle.net/Le98zx1s/
jQuery displaying to html
function getOutput (item)
{
var videoId = item.id.videoId;
var title = item.snippet.title;
var description = item.snippet.description;
var thumb = item.snippet.thumbnails.high.url;
var channelTitle = item.snippet.channelTitle;
var videoDate = item.snippet.publishedAt;
var output = '<li>' +
'<div class = "list-left">' +
'<img src="' + thumb + '">' +
'</div>' +
'<div class ="list-right">' +
'<h3><a class="fancybox fancybox.iframe"' + 'href="http://youtube.com/embed/' + videoId + '">' + title + '</a></h3>' +
'<small>By <span class="cTitle">' + channelTitle + '</span> on ' + videoDate + '</small>' +
'<p>' + description+'</p>' +
'</div>' +
'</li>' +
'<div class ="clearfix"></div>' + ' ';
return output;
}
Annoyingly, the FlickrAPI provides the title and description of a photo in two separate methods. I'm having trouble getting the description of an image from Flickr and was wondering if you could highlight the error in my script.
for (var i = 0; i < photos.photo.length; i++) {
var descPhoto = "https://api.flickr.com/services/rest/?method=flickr.photos.getInfo&api_key="+API_KEY+"&photo_id="+photos.photo[i].id+"&format=json&nojsoncallback=1";
var descArr = [];
$.getJSON(descPhoto, function(data) {
var value = data.photo.description._content;
descArr.push(value);
});
link = 'https://farm' + photos.photo[i].farm + '.static.flickr.com/' + photos.photo[i].server + '/' + photos.photo[i].id + '_' + photos.photo[i].secret + '_';
title = this._htmlEscape( photos.photo[i].title );
var lightbox = "lightbox";
listItems +=
'<li ' + 'class="' + liClassNoDots + '">' +
'<a href="' + link + self.options.imageSize + '.jpg" title="' + title + '" class="' + aClassNoDots + '" target="_blank" data-lightbox="' + lightbox + '">' +
<img alt="' + title + '" src="' + link + self.options.thumbnailSize +'.jpg"/>' +
'<div class="hover-box">' +
'<p>' + descArr[i] + '</p>' +
'<button class="box-button view">View larger</button>' +
'<button class="box-button request">Request</button>' +
'</div>';
'</a>' +
'</li>';
}
Getting the title is fine and I've checked by API string calls and they work in the address bar of my browser.
I've used console.log() and the array is printed out correctly and I'm getting the descriptions. However, in each <p> tag the script is returning undefined in each instance.
However, if I run the script through the debugger the parapgraph tags are populated with the descriptions. Can somebody help?!
i think the problem is in following code::
..
$.getJSON(description, function(desc) {
value = desc.photo[ i ].description._content;
});
the service url returns photo object whereas you are using photo array, change to:
..
$.getJSON(description, function(desc) {
value = desc.photo.description._content;
console.log( value );
});