Try this code , var data = { “mname”: [ { “Mname”: “abc”, “pname”: [], “rewards”: null } ] } $.each( data.mname , function( key, value ) { if(value.rewards == null || value.rewards == undefined){ // Add your codes/logic } }); 1 solved How to check null value in json?
Your window height is not returning expected value, because you are not setting any DOCTYPE: <!DOCTYPE html> SEE 1 solved Scroll Function working in reverse order [closed]
DEMO $(document).ready(function () { $(“.quantity-adder .add-action”).click(function () { if ($(this).hasClass(‘add-up’)) { var text = $(this).parent().parent().parent().find(“[name=quantity]”, ‘.quantity-adder’) text.val(parseInt(text.val()) + 1); } else { var text = $(this).parent().parent().parent().find(“[name=quantity]”, ‘.quantity-adder’) if (parseInt(text.val()) > 1) { text.val(parseInt(text.val()) – 1); } } }); }); I added the .parent() so that then find the proper text to increase 7 solved How … Read more
You want to initiate the download if at least two checkboxes are checked? In that case, try using this: $(document).ready(function() { $(“#download”).click(function() { var count = 0; if ($(‘#temperature’).prop(‘checked’)) count++; if ($(‘#illuminance’).prop(‘checked’)) count++; if ($(‘#button-state’).prop(‘checked’)) count++; if (count > 1) { window.location.href=”https://api.thingspeak.com/channels/899906/feeds.csv?start=2019-11-12%2019:11:12&end=2019-11-13%2019:11:13″; } }); }); 2 solved How to make your checkbox work with your … Read more
Fairly simple with jQuery – see the code comments for explanation. // shorthand for on document load $(function() { // a variable to store our current first letter var currentFirstLetter; // for every child of mylist $(‘.mylist’).children().each(function() { // take the first character of its content var thisLetter = $(this)[0].innerHTML.substr(0,1).toLowerCase(); // if its different to … Read more
Here are 3 versions ES6 with fat arrows ES2015 with function Legacy JS which should run from IE8 or so const uniqueCount = […document.querySelectorAll(“td[id^=invNumbers]”)] .reduce((acc, cur) => { const val = cur.textContent; if (!acc.includes(val)) acc.push(val); return acc; }, []).length; console.log(uniqueCount) // no fat arrows => const uniqueCount1 = […document.querySelectorAll(“td[id^=invNumbers]”)] .reduce(function(acc, cur) { const val = … Read more
Your code is not easy to understand, but your callback is sometimes returning undefined and sometimes a function, perhaps this causes the TypeError, since you could potentially be returning undefined when the API expects a function… this is only a guess though… Indexing into the array was wrong, your variable i took on values from … Read more
Your first code will also work if the element you reference is part of the document at that time, so make sure to put the script near the end of the document, or else wrap it in the ready handler: $(function () { $(‘#delete-btn’).on(‘click’, function(){ return confirm(‘Are you sure you want to delete this?’); }); … Read more
Answer for updated question: How do I retrieve the actual “select#mysel” from the var mysel? example of how this might be used? var mysel = $(“select#mysel”); var myopt = $(mysel.actualstringselection + ” option”); So basically, you want the original selector string that you passed into $() in order to get mysel. You can’t get that. … Read more
I think it’s much better if you use classes for this purpose. Please, try this solution: <style> .img { max-width: 100%; max-height: 100%; width: auto; height: auto; } .changesize { max-width: 40%; max-height: 40%; } </style> <div id=”win” class=”img”>xyz</div> <script> document.getElementById(“win”).className = “changesize”; </script> Hope it helps. solved Change DIV Image Style with Javascript
Quick answer: https://codepen.io/anon/pen/dgeaRo Explenation: What I did was add a class and an Id to your a items and created a Javascript method that mostly does the same as the $(‘.my-card’).click function. This works and should give you a general idea should you want to make changes 1 solved Can someone make my card slider … Read more
The key is: scrollPosition. The Result you want to achieve is a bit too much to explain every single action you have to take. Here is an example of what you are looking for: FadeIn on scroll $(document).ready(function() { /* Every time the window is scrolled … */ $(window).scroll( function(){ /* Check the location of … Read more
First, you should must know about framework vs library, Framework: Which describes how to show your code. Its like a code-template having MVC or MVVM architecture. Examples, “AngularJS”, “Backbone”, “requireJS”, “socketIO”. Library: Its like a toolkit and/or a single file having all the utility functions which can be used to play with your DOM elements … Read more
You need some server side code to send the mail. Just having a form doesn’t do anything for you So to send it on that click: $(‘#sendMessage’).click(function(e) { var $form = $(‘#tellafriend_form’); $.post($form.get(0).action, $form.serialize(), function(data){ //something on success }) $(“#tellfriend”).fadeToggle(‘fast’); }); 9 solved send mail form not sending mail
Use jQuery to append the text at the end, and then move the caret to the desired position: $(‘#title’).on(‘keyup’, function(e) { // Ignore if backspace is pressed if(e.keyCode == 46){ return false; } // Set the value based on the current value length // If it’s longer than 3, “day” is already appended this.value = … Read more