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问题 My web project needs to zoom a div element around the mouse position as anchor while mouse wheeling, I was inspired by @Tatarize 's answer at Zoom in on a point (using scale and translate), but I can't implement it exactly, it can't zoom and translate around the mouse position, can any one help? window.onload = function() { const STEP = 0.05; const MAX_SCALE = 10; const MIN_SCALE = 0.01; const red = document.getElementById('red'); const yellow = red.parentNode; let scale = 1; yellow

问题 I'm trying to create a text-overflow: ellipsis; from the beginning, but in some specific context, it reverses the characters. This is a CodePen to illustrate the problem: https://codepen.io/DWboutin/pen/yLaoxog HTML: <div class="ellipsis">Path to you prefered files that you love so much forever and ever fuck yeah</div> <div class="ellipsis">1":"#323130",messageLink:t?"#6CB8F6":"#005A9E",messageLinkHovered:t?"#82C7FF":"#004578",infoIcon:t?"#</div> CSS: div { margin: 10px 0; border: 1px solid

问题 This question already has answers here : Advantages of createElement over innerHTML? (5 answers) Closed 4 years ago . I'm making divs with several sub elements something like this: <div class="item" data-id="28"> <div class="action-btns"> <button class="add"></button> <button class="rmv"></button> </div> <div class="info"> <h3>Title here</h3> <span>caption here</span> </div> </div> And im giving functions to those two buttons on click. I'm wondering which method of creating these items is

问题 I am trying to implement a simple file upload using the files here : http://www.sanwebe.com/2012/05/ajax-image-upload-and-resize-with-jquery-and-php I have it working and managed to change the styles etc via CSS and change the filenames etc etc. I now need to use this in an iframe and pass a variable for the filename. In my app I can use either localstorage,setItem('clientID',10) or add a parameter to the iframe url. www.xxx.com/uploads?clientID= 10. The plugin has an html file that then

问题 Open Graph tag for Whatsapp link sharing showed that I can have two or more Open Graph images, e.g. a rectangular one for Facebook and a square one for Whatsapp: <meta property="og:image" content="https://emotionathletes.org/images/logo_1200x630_facebook_shared_image_EN.png"> <meta property="og:image:width" content="1200" /> <meta property="og:image:height" content="630" /> <meta property="og:image" content="https://emotionathletes.org/images/logo_400x400_facebook_shared_image_EN.png"> <meta

问题 I want to get only innerText from a webelement. I want to get only "Name" from the anchor tag.I have access to webdriver element associated with tag in below example(anchorElement). I tried anchorElement.getText() and anchorElement.getAttribute("innerText"). Both return me "Name, sort Z to A". What should I do here ? <a id="am-accessible-userName" href="javascript:void(0);" class="selected"> Name <span class="util accessible-text">, sort Z to A</span> <span class="jpui iconwrap sortIcon" id=

问题 I want to get only innerText from a webelement. I want to get only "Name" from the anchor tag.I have access to webdriver element associated with tag in below example(anchorElement). I tried anchorElement.getText() and anchorElement.getAttribute("innerText"). Both return me "Name, sort Z to A". What should I do here ? <a id="am-accessible-userName" href="javascript:void(0);" class="selected"> Name <span class="util accessible-text">, sort Z to A</span> <span class="jpui iconwrap sortIcon" id=

问题 I am trying to assign a click event handler to dynamically created buttons that once clicked, will return the ID of the clicked button in vanilla Javascript without any frameworks. Yet I can't seem to get the events to handle properly, here's the code let h = document.getElementsByClassName("buttons"); h.forEach(function() { addEventListener("click", function() { alert(this.id); }); }; 回答1: Try let h = document.getElementsByClassName("buttons"); [...h].forEach(b => { b.addEventListener("click

问题 I am trying to assign a click event handler to dynamically created buttons that once clicked, will return the ID of the clicked button in vanilla Javascript without any frameworks. Yet I can't seem to get the events to handle properly, here's the code let h = document.getElementsByClassName("buttons"); h.forEach(function() { addEventListener("click", function() { alert(this.id); }); }; 回答1: Try let h = document.getElementsByClassName("buttons"); [...h].forEach(b => { b.addEventListener("click

问题 I am trying to assign a click event handler to dynamically created buttons that once clicked, will return the ID of the clicked button in vanilla Javascript without any frameworks. Yet I can't seem to get the events to handle properly, here's the code let h = document.getElementsByClassName("buttons"); h.forEach(function() { addEventListener("click", function() { alert(this.id); }); }; 回答1: Try let h = document.getElementsByClassName("buttons"); [...h].forEach(b => { b.addEventListener("click