Javascript Articles - Page 489 of 607

To fire dragstart after mousemove, try the following:If you are firing dragstart event, then implement the rest of the process flow as well:To solve the problem, create the user experience as follows: You need to instruct the user to click on the respective area for enabling drag When a user clicks on the area, a dialog should be visible to show that the dragging may now be used.

If you have set all the attributes and audio source correctly, then this can be a security issue.Add the following in your index.html.Set the AndroidManifest.xml as

An input.the valueAsDate method returns a Date object reflecting the input's current value. The displayed value follows the same format. To make it work:new Date().toISOString().substr( 0, 10 ); new Date().toLocaleDateString(); input.valueAsDate; input.valueAsDate.toLocaleDateString(); new Date( input.valueAsDate ); new Date( input.valueAsDate ).toISOString().substr( 0, 10 );

To create a DragEvent, use the protractor API. The official documentation states:The browser.get method loads a page. Protractor expects Angular to be present on a page, so it will throw an error if the page it is attempting to load does not contain the Angular library. (If you need to interact with a non-Angular page, you may access the wrapped web driver instance directly with browser.driver).Use the following pattern as well:browser .actions() .dragAndDrop(myEle, {x:100,y:100}) .perform();

To solve the Uncaught Security Exception, you need to add the crossorigin attribute: function getBase64() {    var myImg = document.getElementById("myid");    var c = document.createElement("canvas");    c.width = myImg.width;    c.height = myImg.width;    var context = c.getContext("2d");    context.drawImage(img, 0, 0);    var dataURL = c.toDataURL("image/png");    alert(dataURL.replace(/^data:image\/(png|jpg);base64,/, "")); } getBase64();

For full page drag and drop files, try the following code:var myDrop = document.getElementById('dropZone'); function displayDropZone() {    myDrop.style.visibility = "visible"; } function hideDropZone() {    myDrop.style.visibility = "hidden"; } function allowDrag(ev) {    if (true) {       ev.dataTransfer.dropEffect = 'copy';       ev.preventDefault();    } } function handleDrop(ev) {    ev.preventDefault();    hideDropZone();    alert('This is Drop!'); } window.addEventListener('dragenter', function(ev) {    displayDropZone(); }); myDrop.addEventListener('dragenter', allowDrag); myDrop.addEventListener('dragover', allowDrag); myDrop.addEventListener('dragleave', function(e) {    hideDropZone(); }); myDrop.addEventListener('drop', handleDrop);

To make a element to be recognized by Safari:main {    display: block;    width: 800px;    height: 800px;    background-color: #0C0; }You need to focus on:main {    display: block; }

To solve the issue for HTML5 meta viewport, you can any of the following fix:You can also try this:Let us say you have a site width of 100px, then it won’t display the whole page, withinitial-scale = 1

To send a file and parameters within the same XMLHttpRequest:var myForm = new FormData(); myForm.append('param1', 'demo'); myForm.append('param2', 6767); myForm.append('myDir', 'public-data'); myForm.append('demofile', file); xhr.send(myForm);

To enhance HTML5 canvas performance:Image smoothing should be disabledRender in half resolutionUse drawImage() to update main canvas You need to use integer coordinates and sizesUsage of requestAnimationFrame() You need to use while loops as often as you can