Why wont this event listener work for multiple keys when in an array in javascript?

Why wont this event listener work for multiple keys when in an array in javascript?

By : Ramakrishna Kumar
Date : November 18 2020, 03:49 PM
fixed the issue. Will look into that further When you press multiple keys, your addEventListener no longer listens to your first keypress. That's why your if statement is failing. You can test that out on the first example on http://api.jquery.com/event.which/ Try holding one key, then holding a second key, and then releasing the second key. You'll notice that the first key won't be logged anymore.
*edit: A way around that would be to implement it like this:
code :
var keys = {};

$(document).keydown(function (e) {
    keys[e.which] = true;

$(document).keyup(function (e) {
    delete keys[e.which];

Share : facebook icon twitter icon
Adding multiple expanders event programmatically wont work

Adding multiple expanders event programmatically wont work

By : Reechard Flanagan
Date : March 29 2020, 07:55 AM
around this issue I suspect you are finding x in the delegate is always the highest value it reached during the loop. This is due to the way the compiler instantiates the instance of the anonymous method you've defined. It looks at what captured outer variables there are around the delegate and decides whether it requires separate instances or if it can use a single instance. In this case, you have no captured outer variables; therefore, the compiler is permitted to use the same instance of the delegate and therefore the same value of x.
To get around this issue, all you need to do is add a more granular variable just before the delegate and assign it the value of x. This will work:
code :
private void InitExpanders()
    var expanders = GetExpanders();
    int x = 0;
    for (int i = 0; i < expanders.Count; i++)
        if (i % 6 == 1)
                int y = x++;
                expanders[i - 1].Expanded += delegate
Why Won't This Simple Event Listener Work in Javascript?

Why Won't This Simple Event Listener Work in Javascript?

By : Thangapandi Pandi
Date : March 29 2020, 07:55 AM
seems to work fine I was wondering if someone could provide a teaching point for me. I am trying to learn Javascript and the logic of this code seems reasonable to me, but it doesn't work for some reason. , The switch must be inside the function of the event Listener:
code :
myButton.addEventListener("click", function() {
    testingVar = "hello";
    switch (testingVar) {
      case "hello" :
        alert("You've got the hello condition!");

      case "goodbye" :
        alert("You've got the goodbye condition");
    } // end switch statement
}, false);
JavaScript HTML DOM Event Listener doesn't work

JavaScript HTML DOM Event Listener doesn't work

By : Randy
Date : March 29 2020, 07:55 AM
like below fixes the issue My code: , Code should look like this
code :
<form id="<?php echo $id; ?>" name ="form_test" action="test_form.php" method="post">
    <input type="radio" name="type_test" value="ola"> ola <br/>
    <input type="radio" name="type_test" value="adeus"> adeus <br/>
    <input type="submit" value="submit" /> <!--imput only use for POST method-->

<button id="myBtn">Try it</button>

        document.getElementById("myBtn").addEventListener("click", functio_test);

        function functio_test(){
            var x = document.querySelector('input[name="type_test"]:checked').value;
            if(x == "ola"){
                 alert("Ola José");
            else if(x == "adeus"){
                 alert("Adeus José");
            else {
                alert("Continua José");
Trouble getting event listener to work properly in javascript

Trouble getting event listener to work properly in javascript

By : Aditya Tyagi
Date : March 29 2020, 07:55 AM
hop of those help? document.getElementById is case-sensitive.
You have id="showAll" when you are searching for document.getElementById("showALL");.
code :
var greenBox = document.getElementById("greenBox");
var redBox = document.getElementById("redBox");
var blueBox = document.getElementById("blueBox");
var showALL = document.getElementById("showAll");
var hideALL = document.getElementById("hideAll");

var boxes = [greenBox, redBox, blueBox];

function showBoxes(boxes) {
  for (i = 0; i < boxes.length; i++) {
    boxes[i].style.display = "block";

function hideBoxes(boxes) {
  for (i = 0; i < boxes.length; i++) {
    boxes[i].style.display = "none";

showALL.addEventListener("click", function() {

// The "Hide All" button invokes the hideBoxes method
hideALL.addEventListener("click", function() {
.box {width: 200px; height: 36px;}

#redBox {background-color: #F00;}
#greenBox {background-color: #0F0;}
#blueBox {background-color: #00F;}
<form action="#">
  <input type="button" id="showAll" value="Show All"><br />
  <input type="button" id="hideAll" value="Hide All"><br />

<div class="box" id="greenBox" style="display:none"></div>
<div class="box" id="redBox" style="display:none"></div>
<div class="box" id="blueBox" style="display:none"></div>
Javascript - Add Event Listener to live <a> tags but exclude the inside elements from the Event Listener

Javascript - Add Event Listener to live <a> tags but exclude the inside elements from the Event Listener

By : Bin Li
Date : March 29 2020, 07:55 AM
Related Posts Related Posts :
  • In HTML5, please explain the meaning of '?' in the statement
  • Form to use AJAX rather than a page refresh but also utilise error handling?
  • JQuery Script looping error
  • different size divs align top left
  • Image fade-in when webpage finishes loading
  • Seeking HTML5 audio element causes delay (breaks sync)
  • How can I read & write data to a new tab in Firefox?
  • jQuery or JS turn all words into italic type
  • iOS css -webkit-transform: scale doesn't offset touch events
  • Populate select list using javascript
  • Can you work out why my .js file doesn't seem to be linking to my html?
  • Make slideToggle effect only one element at a time
  • Output sound using JavaScript
  • What is the analytics.js equivalent of _trackPageview found in ga.js
  • How can I check if a JS file has been included already?
  • hasClass and condition not working
  • EDITED: I'm having issues with a button and its function
  • Importing XML in HTML with javascript
  • Create new function in contentScriptFile in Firefox extension
  • Should I build Node.js from source or download the OS X installer?
  • How to enforce integer sizes in JS? (TypeScript?)
  • How to update the JSON object without deleting old values using javascript
  • Reading a javascript variable containing a string into another file
  • Possible to prevent 403 errors from logging to the web console?
  • Jquery Accordion - Expand and collapse div on hover
  • jquery .hide() function - Hide mobile, Display Desktop
  • Holding password in javascript variable - security implications?
  • JQPlot trouble to render vertical stacked bar and horizontal legend
  • counts days inbetween then add class to those days with nested divs?
  • Marionette.js with Rails (Devise) Authentication
  • javascript anonymous function evaluation idiom
  • Why am I losing the decimal when working this equation in Javascript?
  • Site redirects to index.php after being open while making calls to an API using AJAX
  • How to determine when multiple callbacks are all done
  • How to update Yeoman dependencies?
  • How can I do a /resolve with the Soundcloud Javascript SDK?
  • I'm not able to call a named callback function
  • How to get value of Paragraph element contained in <div> in HTML using JavaScript
  • Javascript - Get value from textbox and save it on a string
  • Backbonejs collection not populated, but fetch works
  • when function's internal [[scope]] property is assigned?
  • Wrapping around the edges in a 2d array (game of life)?
  • Clone div with all nested elements along with events in pure javascript
  • How to get response text?
  • Setting and retrieving cookies in javascript
  • Passing parameter with double quotes
  • finding the meaning of the obfuscated javascript
  • Socket.io - Sending data from a pusher stream to the client
  • How to determine the visibility li's in a scrollable ul
  • How to create Scrolling Effect like Grouek website
  • How to display a state in parents template in ui-router
  • Angular ng-repeat - creating collection dynamically
  • finding advertisements on a page with javascript
  • Is there a way to cause a Grunt plugin to fail if input files are missing?
  • JQuery datepickers- setting end date from a start date
  • javascript - explanation request of a behaviour
  • Converting String into date format in JS
  • Choose element Angular
  • Display background grid by using image with CSS
  • Call function from another Controller in another file AngularJS
  • shadow
    Privacy Policy - Terms - Contact Us © ourworld-yourmove.org