dom-events

问题 I'm new to React.js. I'm trying to trigger keypress event for text div. Here is text box code for which I want to execute keypress trigger. <div id="test23" contenteditable="true" class="input" placeholder="type a message" data-reactid="137">Hii...</div> and keypress method is: onKeyPress: function(e) { return "Enter" == e.key ? "Enter key event triggered" : void 0) } I tried it with jQuery but I can't trigger it. Here is my React code that I tried but its not working: var event = new Event(

问题 I'm new to React.js. I'm trying to trigger keypress event for text div. Here is text box code for which I want to execute keypress trigger. <div id="test23" contenteditable="true" class="input" placeholder="type a message" data-reactid="137">Hii...</div> and keypress method is: onKeyPress: function(e) { return "Enter" == e.key ? "Enter key event triggered" : void 0) } I tried it with jQuery but I can't trigger it. Here is my React code that I tried but its not working: var event = new Event(

问题 I am trying to open a new tab using JavaScript and then I want to get the url of the newly opened tab. I did some research and figured out it is something related to parent (current tab) and child (newly opened) tab communication. I am able to open the new tab using the script: url='https://www.google.com/'+home; window.open(url, '_blank'); I want to get the url of my newly opened tab here in this script as you can see i have opened /home so it change the new url to https://store.google.com

问题 I am trying to open a new tab using JavaScript and then I want to get the url of the newly opened tab. I did some research and figured out it is something related to parent (current tab) and child (newly opened) tab communication. I am able to open the new tab using the script: url='https://www.google.com/'+home; window.open(url, '_blank'); I want to get the url of my newly opened tab here in this script as you can see i have opened /home so it change the new url to https://store.google.com

问题 I want to detect when a node (nodeX, say) is no longer available, either because it was deleted or because its parent (or its parents parent) was deleted. So far, all I can think of is to use Mutation Observer to see any deletions on the page, and check if the deleted nodes was nodeX or had nodeX for a descendant. Is there an easier way? Please note: as far as I understand, the linked question (that this question "is a duplicate of") asks "how can I detect a [direct] deletion of a node". Mine

问题 I am having trouble tracking the value of the "option" tag in the "select" tag. I currently have a drop down menu for Google Translator Widget where user can click on it and select the language. When you click on the "Select Language" drop down, you will be able to see German as the option. See the attached screenshots. I have created a Macro call "JS - Google Translate - Select Option" in the Google Tag Manager. Here is the code for "JS - Google Translate - Select Option": function() { var

问题 Is there a way to add long press event in react-web application ? I have list of addresses. On long press on any address, I want to fire event to delete that address followed by a confirm box. 回答1: You can use MouseDown, MouseUp, TouchStart, TouchEnd events to control timers that can act as a long press event. Check out the code below class App extends Component { constructor() { super() this.handleButtonPress = this.handleButtonPress.bind(this) this.handleButtonRelease = this

问题 Is there a way to add long press event in react-web application ? I have list of addresses. On long press on any address, I want to fire event to delete that address followed by a confirm box. 回答1: You can use MouseDown, MouseUp, TouchStart, TouchEnd events to control timers that can act as a long press event. Check out the code below class App extends Component { constructor() { super() this.handleButtonPress = this.handleButtonPress.bind(this) this.handleButtonRelease = this

问题 Is there a way to add long press event in react-web application ? I have list of addresses. On long press on any address, I want to fire event to delete that address followed by a confirm box. 回答1: You can use MouseDown, MouseUp, TouchStart, TouchEnd events to control timers that can act as a long press event. Check out the code below class App extends Component { constructor() { super() this.handleButtonPress = this.handleButtonPress.bind(this) this.handleButtonRelease = this

问题 I want to be able to close a popup menu when the user clicks outside. How can I accomplish this in pure JS? Here is the code I'm currently working with: function list(){ var r= document.getElementById('l2'); if (r.style.height==="0px"){ r.style.height="500px" } else { r.style.height="0px";} } #logo-menu img { width: 4vw; height: 2.79vw; border-radius: 3px; border: 0px solid rgba(0, 0, 0, 0.5); transition: 0.3s; z-index: 3; margin: 0% 0% 0% 0%; position: relative; top: 0.0vw; background: rgba