Javascript Articles - Page 540 of 671

HTML5 Geolocation API lets you share your location with your favorite web sites. A JavaScript can capture your latitude and longitude, can be sent to backend web server, and do fancy location-aware things like finding local businesses or showing your location on a map.ExampleLet us see how to get the current position −                    function showLocation(position) {             var latitude = position.coords.latitude;             var longitude = position.coords.longitude;             alert("Latitude : " + latitude + " ... Read More

You can use the BluePrint/960gs framework or any of the following −52frameworkSusy        52framework (Refer)The framework that provides −CSS3 gradients, multiple shadows, and other amazing properties.CSS3 selectors with support for IE.New and improved HTML5 video support with vimeo like skinA completely new Form Framework with HTML5 Validation (via javascript)Susy (Refer)A lightweight grid-layout framework for Sass. This is designed to clarify responsive grid layouts. Use Susy with floats, flexbox, tables, etc.

For this, use Google Maps API to perform reverse geocoding.Geocoding refers to translating a human-readable address into a location on a map.The process of doing the converse, translating a location on the map into a human-readable address, is known as reverse geocoding.ExampleLet us see an example to set latitude and longitude −function initMap() {    var map = new google.maps.Map(document.getElementById('map'), {       zoom: 8,       center: {lat: 20.502, lng: -22.765}    }); }The reverse geocoder will match countries, provinces, cities and neighborhoods, street addresses, and postal codes.

Yes, the checkValidity() works in Google Chrome and Opera as well. This works as well −Example                    .valid {             color: #0B7866;          }          .invalid {             color: #0B6877;          }                            function check(input) {             var out = document.getElementById('result');             if (input.validity) {                if (input.validity.valid === true) {                   out.innerHTML = "" + input.id +                   " valid";                   } else {                   out.innerHTML = "" + input.id +                  " not valid";                }             }             console.log(input.checkValidity());          };                      Minimum:                                

It can be a Cross-Origin Resource Sharing (CORS) issue.video.crossOrigin = 'anonymous';To enable cross-origin resource sharing, use the following. It allows the images to pass the HTTP header with an image response.Access-Control-Allow-Origin: *You can also use the HTML() method −$('#audio').html('');

HTML5 canvas provides compositing attribute globalCompositeOperation that affect all the drawing operations.ExampleWe can draw new shapes behind existing shapes and mask off certain areas, clear sections from the canvas using globalCompositeOperation attribute as shown below in the example.                    var compositeTypes = [             'source-over','source-in','source-out','source-atop',             'destination-over','destination-in','destination-out',             'destination-atop','lighter','darker','copy','xor'          ];          function drawShape(){             for (i=0;i

HTML5 canvas provides scale(x, y) method that is used to increase or decrease the units in our canvas grid. This can be used to draw scaled down or enlarged shapes and bitmaps.This method takes two parameters where x is the scale factor in the horizontal direction and y is the scale factor in the vertical direction. Both parameters must be positive numbers.ExampleLet us see an example −                    function drawShape(){             // get the canvas element using the DOM             ... Read More

HTML5 canvas provides methods that allow modifications directly to the transformation matrix. The transformation matrix must initially be the identity transform. It may then be adjusted using the transformation methods.ExampleLet us see an example of canvas transformation −                    function drawShape(){             // get the canvas element using the DOM             var canvas = document.getElementById('mycanvas');             // make sure we don't execute when canvas isn't supported             if (canvas.getContext){                // use getContext to use the canvas for drawing                var ctx = canvas.getContext('2d');                var sin = Math.sin(Math.PI/6);                var cos = Math.cos(Math.PI/6);                ctx.translate(200, 200);                var c = 0;                for (var i=0; i

To make a form with HTML, we use the following −    Details:    Student Name    Exam Date and Time     To make a form with jQuery and HTML, add input type text as −$form.append('');A better example would be − $myform = $(""); $myform.append(''); $('body').append($myform);

Use HTML with jQuery to achieve this and fire after pressing ENTER −Example                          $(document).ready(function(){             $('input').bind("enterKey",function(e){                alert("Enter key pressed");             });             $('input').keyup(function(e){                if(e.keyCode == 13)                {                   $(this).trigger("enterKey");                }             });          });                             Press Enter key in the above input text.