jquery

问题 I am working on a single document file. I want to scroll to the desired section with id="projectpage" when an anchor with id="about" is clicked. <a class="nav-link page-scroll" href="" id="about">About Me</a> <section id="aboutpage"> I tried using $('a#about').click(function(){ $(window).scrollTo(0, document.getElementById('projectpage').offsetTop); }); or even $('#about').click(function(){ $(window).scrollTo(0, document.getElementById('projectpage').offsetTop); }); but nothing works. When I

问题 I have the following code: $('button').click(function() { $('#parent').append('<div>element</div>'); }); #parent { height: 200px; width: 100px; border: 1px solid #ccc; } <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div id="parent"></div> <button> Add </button> https://jsfiddle.net/8ybnycxv/1/ When the button is clicked, I want to append a div element to the #parent . However, if there is no element in the #parent yet, elements will be added

问题 I am fairly to programmming, and have been blocked on an issue for a few days now. I have a table with 2 columns, Record# and notes for each record. The "notes" are usually very long so I was planning on having a link on each cell on the "notes" column with a link to a modal where the notes where displayed. Problem I am facing is that all the links will show the notes for the first item of the table... Here is my code (the td "Notes" is just there for verification purposes): <table> <tbody>

问题 I'm using jqueries UI sortable plugin with 2 connected lists. I'm trying to get sortable to add a certain class to the li when it is dropped into certain uls. So depending on the ul it goes to, I want it to remove the old class and add a new different class which will be ul dependent. For example: I have a complete list and a archived list. I want it to change classes when moving from completed to archive and vice versa. I did some research and found: receive: function(event, ui) { //Element

问题 I'm using jqueries UI sortable plugin with 2 connected lists. I'm trying to get sortable to add a certain class to the li when it is dropped into certain uls. So depending on the ul it goes to, I want it to remove the old class and add a new different class which will be ul dependent. For example: I have a complete list and a archived list. I want it to change classes when moving from completed to archive and vice versa. I did some research and found: receive: function(event, ui) { //Element

问题 I have a few products in a mySQL database whose links are being retrieved in my script with $producturl. These url's actually add the product to the cart (http://www.example.com/cart/?add-to-cart=1127). I am trying to create a script that will allow the user to add products to the cart but NOT redirect them, just execute the link so the user stays on the same page. I am using preventDefault and stopPropgation but it is not working. The alert shows up but the link itself is not executing when

问题 I have a few products in a mySQL database whose links are being retrieved in my script with $producturl. These url's actually add the product to the cart (http://www.example.com/cart/?add-to-cart=1127). I am trying to create a script that will allow the user to add products to the cart but NOT redirect them, just execute the link so the user stays on the same page. I am using preventDefault and stopPropgation but it is not working. The alert shows up but the link itself is not executing when

问题 Am using JQuery mobile for a usermenu list, but it seems to save the pressed button link "ui-state=dialog" Which is disturbing the navigation when am using the back button on the webbrowser. How can i remove the "ui-state=dialog" which adds to the URL? Example: http://demos.jquerymobile.com/1.4.5/popup/ Try the first so called "basic popup", the saved URL which is: "ui-state=dialog" still appears in the broswer history. 回答1: To resolve the refresh problem, I use to intercept #&ui-state and

问题 I have a problem with removing cloned div. I*m unable to remove the cloned div which div clicked on to be remove. My code is like below: <div id="item_details"> <table> <tr> <td> <p class="label_text">Name:</p> </td> <td> <input name="item_name[]" type="text" value="" id="item_name" class="input_text" style="width: 126px;" /> </td> <td> <p class="label_text">Brand:</p> </td> <td> <input name="item_brand[]" type="text" value="" id="item_brand" class="input_text" style="width: 126px;" /> </td>

问题 Lets say I have a single-page web application with a list of items where a user can click on an item to view more info about it. The actual item info is loaded asynchronously, using an AJAX GET request to the URL http://www.example.com/item/[id] and is displayed upon loading. The question is, what to do if the item with the given id doesn't exist? Right now, the request returns status code 200, but the actual content indicates that the item doesn't exist. This seems like a bad idea so I