jquery

问题 HTML code: <div class="wrap"> <h3>Background Swap:</h3> <form action="" method="POST"> <div id="checkbox-container"> Shadowless background: <input type="checkbox" name="new_background" id="checker" <?php echo (isset($_POST['new_background']))? "checked='checked'": "";?>/><br /><br /> </div> <input type="submit" name="submit" value="Upgrade Background" class="button" /> </form> </div> This will make the checkbox stays checked, but when page is refresh or exit and comes back, the checkbox will

问题 I am refreshing my Bar Chart on change of a drop down. I just Want to know that am I doing it in correct way. In my code every time I am replacing my existing canvas with new one. Is there any better way to achieve same thing? My JS Code: var chart_= function () { $('#canvas_id').replaceWith('<canvas id="canvas_id" style="height:280px"></canvas>'); $.ajax({ type: 'POST', //post method url: 'url', //ajaxformexample url dataType: "json", success: function (result, textStatus, jqXHR) { //

问题 Before Anything: $.getJSON back button showing JSON return data not the page did not help, as well as https://groups.google.com/group/angular/browse_thread/thread/3787ad609c0beb77/eb1b57069dab9f63 did not and the internet too did not help. Here's the issue: I'm calling an url from within a page to get json data, which then gets rendered with jquery templating inside this same page. Imagine we're on the page http://someurl.com/search and we're starting a request like this $.ajax({ url: '

问题 I'm trying to migrate my API calls from using jQuery ajax to using the Fetch API. I was using jQuery ajaxStart and ajaxStop to display a loading spinner during server calls. I'm running several parallel server requests, I want the spinner to start when the first request start and to stop when the last request settled. It was pretty straight foward with jQuery. However, I can't find a similiar technique using the fetch API. Any ideas ? 回答1: You can use Promise to notify when fetch is called

问题 I am having a rather frustrating problem with the jquery post function that probably stems from not understanding how it works correctly. I have a function that should post some form information to a php script that I wrote and that script then runs curl requests against an API to get around the cross-domain policy of javascript. It seems to work fine as long as it submits to "http" but when I send it to "https" the form never gets submitted. I ran wireshark on my computer and it showed no

问题 Web server generates images and sends them to client directly. There are no URLs to the images, for security reasons. For example, if I enter /images/25 URL in the browser server will send it and browser will download it. Now I want to get this image from Ajax call and then display it on existing page. I can get the image data. My question is: how can I display an image? $.get("/images/25", function (rawImageData) { // ??? Need to add an image to DOM }); Update I apologize for being so stupid

问题 I am having a rather frustrating problem with the jquery post function that probably stems from not understanding how it works correctly. I have a function that should post some form information to a php script that I wrote and that script then runs curl requests against an API to get around the cross-domain policy of javascript. It seems to work fine as long as it submits to "http" but when I send it to "https" the form never gets submitted. I ran wireshark on my computer and it showed no

问题 Thanks in advance for your help. I'm using this tagmanager in my web application. The jQuery function works FINE until this <input type="text" name="tags" placeholder="Tags" class="tagsManager" /> Is placed under ng-repeat = "(key,val) in client_proj" Here is a short snippet of the code <div class="accordion-group" ng-repeat="(key,val) in client_proj"><!--For Every Project in Project List--> <div class="accordion-heading" style="background-color:#EFF8FB"> <a class="accordion-toggle" data

问题 I want to prevent from adding a category to the Select2 element if it fails creating the row first in my db. The action is not prevented when i call ev.preventDefault(); Nothing happens.. what is wrong? $('#sel2').select2({ placeholder: 'Enter categories', minimumInputLength: 3, multiple: true, ajax: { url: 'async/get_categories.php', dataType: 'json', quietMillis: 250, data: function (term, page) { return { q: term, }; }, results: function (data, page) { return { results: data.items }; },

问题 I am working with clip() in canvas. I have made a region to clip() , as specified below this.svgRenderer.ctx.rect(positionX, positionY, Width, Height); this.svgRenderer.ctx.clip(); After few drawing on the same canvas, I am trying to remove the clip for that region by using save() and restore() . But I am making mistakes and can't get that. So suggest any other way to remove the clip for the specified region without using save() and restore() 回答1: .clip is a permanent context state change. It