jquery-callback

问题 I want to run window.resolveLocalFileSystemURI(file,success,fail) in for loop passing different file entries and want to return resolved entries in array only after I get all the entries. function resolveFiles(result,callback) { var resultData=[] window.resolveLocalFileSystemURI(result, function(entry) { resolvedGalleryImages.push(entry); callback(resolvedGalleryImages); resolvedGalleryImages=[]; }, function(e) { alert("err"+e);}); } //calling-- //@filesarr has captured images uris for(i = 0;

问题 I have a weird issue. I am using jquery star rating plugin. If i have breakpoint in my JS code then only the radio buttons are converting into stars otherwise it is not converting. I will explain the code step wise This jquery code loads ratingDialog.jsp into jquery dialog box function openRatingDialog() { dialogId++; var rateDialog = $('<div id="ratingloaderDiv"></div>') .load("ratingDialog.jsp?id="+ dialogId).dialog({ autoOpen: true, minHeight:275, width: 400, height: 350, open: function(

问题 I'm wondering is possible somehow to prevent this keyword to be transformed into _this inside fat arrow callback ( => )? For example: class someClass someMethod: -> $(document).on 'click', '.myclass', (e) => # doing things with right context this, it's ok @anotherMethod() @oneMoreMethod() # but here I need jQuery ``this`` pointing to element $el = $ this # this is transformed into ``_this`` :( Maybe I missed some option or operator? UPDATE I know about the trick like self = this , but I

问题 I am having a tough time conceptualizing what exactly callbacks or hooks are in jQuery. They seem to be lumped together, but I don't know the difference between them. From what I understand from other posts about callbacks, like this, a callback is simply a function A that you pass to another function B that calls A once B is done. (That may be totally wrong, correct me if so). I really don't have any notion on hooks, other than the statement "you should use a hook/callback." Something makes

问题 This question already has answers here : JavaScript closure inside loops – simple practical example (44 answers) Closed 2 years ago . I am using jQuery "GET" in a loop to obtain several results from the server. I want to include the loop index as a fixed parameter to the call back but its not working. (I followed the advice of this article on how to do it.) However, the value I get in the call back is completely not what I expect – rather than each loop index value, it is always equal to the

问题 This question already has answers here : How do I return the response from an asynchronous call? (36 answers) Closed last year . How would I, using $.post() in a function, force the return on the post callback? Example: function myFunction(){ $.post(postURL,mydata,function(data){ return data; }); } I have tried playing around with it using .done() and .queue() however neither has worked for me. I understand there is a fundamental flaw in my example; with that said, how can I achieve my

问题 I have a javascript code as below var xReg = '<region><width>' + $("#txtWidth").val() + '</width> <height>' + $("#txtHeight").val() + '</height><float>' + $("#floats").val() + '</float><contenttype>' + $("#contenttype").val() + '</contenttype><style>' + rgnStyle + '</style></region>'; $.ajax({ type: "POST", url: "myurl/addRegion", data: "{pubId: '" + Number($("#pubs").val()) + "',section: '" + $("#sections option:selected").text() + "',layoutW: '" + Number($("#txtLayoutW").val()) + "',layoutH

问题 I have a page where I use load to load a dialog box. From that dialog box, I have jQuery in there that posts an ajax request to a PHP script. This all works fine. From the PHP I echo out the result and attempt to catch that on the done callback from this loaded dialog - but its not working. It updates the database, but I can't catch the echo. This works elsewhere in my site, but I can't get it working here. I think it might have something to do with the fact that this is coming from a 'loaded

问题 I am on server side Node.js and somehow caught up in the callbacks. I use the following function to insert Data in the Table with the mysql pkg: connection.query('INSERT INTO tableName SET ?', post, function(err, result) { if (err) { if (err.code === 'ER_DUP_ENTRY') { } else { throw err; } } }); I want to log how many duplicate entries are there without stoping the loop which calls this above function by an $.each. It says here that i have 3 possibilities: throw, callbacks and EventEmitter.

问题 I am loading a separate JSP using jquery in a dialog box. Dialog box has a button submit. I want to make ajax call on clicking submit. I am including submit.click on the dialog callback function but it is not working. Here is the step by step code. First Jquery code to load JSP : function openRatingDialog() { var rateDialog = $('<div id="ratingloaderDiv"></div>') .load("ratingDialog.jsp").dialog({ autoOpen: true, minHeight:275, width: 400, height: 350, open: function( event, ui ) { $("