Front End Technology Articles - Page 525 of 652

Whenever a mobile website is created and there is a requirement in which user is requested for current position on button click, then HTML5 geolocation is used.This is working fine in mobile chrome.However when in Mobile Safari, the user is prompted to share location and browser defaults to geolocation then browser is defaulted to Permission denied errorTo solve this, the Geolocation services in mobile services is turned on to get current location of requested user.

If the HTML5 Canvas layer disappears on mouse click in Fabric.js and Firefox stops responding when creating a canvas to the image, then there is a way to drag and drop images from your computer to canvas using Fabric.This can be done by making image draggable property to true by this way −

When an app is to be developed that displays new data whenever it is stored in a folder through XML, we use websockets apache server.Mod_websocket or php websocket can be used.we can also use self-hosted realtime web technology for realtime communication between server and client.A hosted realtime web solutions and realtime push aspect of your application can be offloaded.However, Apache server is not good in long-running persistant connections between server and client.Best solution for this is:While using Apache as application server we need to use second dedicated realtime webserver.Self hosted realtime webserver can be used to handle many concurrent connectionsA ... Read More

We received a greatness from HTML5. Basic HTML can now be used to carry out tasks that JavaScript and Flash previously handled, such as basic form validation, INPUT placeholders, and audio/video. The autofocus attribute in HTML allows us to automatically focus on components when the page loads, which is another straightforward feature. When the autofocus property is present, the page loads with the INPUT, TEXTAREA, or BUTTON element already chosen. This property is particularly helpful on pages whose primary goal is information gathering. Autofocus HTML5 attribute An element should be focused when the page loads or when the a ... Read More

The tag designates a field for user-enterable data. The most significant form element is the element. Depending on the type attribute, the element can be presented in a number of different ways. The input element denotes a field for a week input because it has the value "week" in its type property. Instead of requiring users to input the value as a string, these fields could be represented in supporting browsers by controls that let users update it graphically (such as a calendar, for example). Let’s jump into the article to discuss more about input type week ... Read More

Whenever you face such issue, it would mean you have not written the CSS properly.Just add the following in CSS −* {    zoom:1;    -ms-content-zooming:none; }For some code, even the following works −@viewport {    width:320px; } @-ms-viewport {    width:320px;    zoom-user:fixed;    max-zoom:1;    min-zoom:1; }

For HTML5 input time, in PHP:Exampleecho date("Y-m-d\TH:i:s");OutputThe output would be:2018-28-03T19:12:49HTML with Timestamp would be:

To alter the color of an HTML5 canvas, use −document.getElementById("ID").style.background = red;You can also try the following −var ctx = canvas.getContext('2d'); ctx.fillStyle = "#FF0000"; ctx.fill();

Client-side XSLTProcessor API is part of the HTML5 scripting specification, as stated below:When an XSLT transformation program is triggered by a processing instruction and the browser implements a direct-to-DOM transformation, script elements created by the XSLT processor need to be marked "parser-inserted" and run in document oThe XSLTProcessor.transformToDocument() method adds elements to a Document that does not have a browsing context, and, accordingly, any script elements they create need to have their "already started" flag set in the prepare a script algorithm and never get executed (scripting is disabled). Such script elements still need to be marked "parser-inserted", though, such ... Read More

In HTML5 canvas, you can add shadows to shapes, lines, texts, and images to give them the appearance of depth. You can use the following canvas context attributes to add shadows when using the HTML5 canvas. shadowOffsetX() shadowOffsetY() shadowColor() shadowBlur() shadowOffsetX() The property can be used to get or set a shadow's horizontal distance of a shadow from a page. To change the location of a shadow, you can use positive or negative numbers. Zero is the default value. Syntax Following is the syntax for shadowOffsetX() ctx.shadowOffsetX = h_distance; where h_distance belongs to the horizontal distance ... Read More