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Javascript Articles
Page 453 of 534
HTML5/CSS align list-items depending on other columns mutual height
Align list-item with the help of flex. Flex will make columns flexible according to content. The wrapper will layout columns in a row..wrap{ display : flex }// This will help wrapper to become flexible .wrap.col{ flex: 1 0 33%; }Flex is basically a property which helps in making element flexible.Use the following to keep the lists vertically aligned to the bottom −.col .content { margin-top: auto; }
Read MoreHow to change date time format in HTML5?
The date-time format can be changed by using custom HTML5 elements. If we wish to change or override existing Html tags then we can do so with the help of shadow DOM.We can make customizable tags like −Here is an example −However, E10 and older versions do not support customizable tags; however, all newer versions support customizable tags.
Read MoreApple Touch icon for websites in HTML
For web page icon on iPhone or iPad, use the Apple Touch Icon or apple-touch-icon.png file. This icon is used when someone adds your web page as a bookmark.For multiple icons with different device resolutions like iPhone or iPad, add sizes attribute to each link element as follows −Set size The icon with the appropriate size for the device is used.
Read MoreHow to clear a chart from HTML5 canvas so that hover events cannot be triggered?
To clear a chart from canvas, delete the element and then append a new element to the parent container as in the below-given code −var resetCanvas = function(){ $('#results-graph').remove(); $('#graph-container').append(''); canvas = document.querySelector('#results-graph'); ct = canvas.getContext('2d'); ct.canvas.width = $('#graph').width(); // here we are resizing the new canvas element to parent width ct.canvas.height = $('#graph').height(); // here we are resizing the new canvas element to parent height var a = canvas.width/2; var b = canvas.height/2; ct.font = '12pt Calibri'; ct.textAlign = 'Align Left'; ct.fillText('left aligned ...
Read MoreHow can I make a browser to browser (peer to peer) connection in HTML?
For the browser to browser connection, follow the below-given steps −All the following library −Create a peer −For creating a peer, you need to get a free API key.var peer = new Peer('pick-an-id', {key: 'myapikey'});Connect −var conn = peer.connect('another-peers-id'); conn.on('open', function(){ conn.send('Welcome!'); });
Read MoreHow to draw grid using HTML5 and canvas or SVG?
In the below given example, we have first defined the width and height of the grid. Then we are defining the size of canvas and drawn gird into a canvas.//we are setting the grid width and height var grid_w = 200; var grid_h = 200; //we are setting padding around grid var gridp = 15; //we are defining size of canvas by defining its width and height var canvas_w = grid_w + (gridp*2) + 1; var canvas_h = grid_h + (gridp*2) + 1; var canvas = $('').attr({width: canvas_w, height: canvas_h}).appendTo('body'); var ctx = canvas.get(0).getContext("2d");Here is our method −function ...
Read MoreHTML 5 video or audio playlist
Use HTML with JavaScript to add playlist. The onended event fires when the audio/video has reached the end. You can add messages like “Thank you for watching”, “Stay tuned!”, etcExampleYou can try to run the following code to implement the onended attribute − Your browser does not support the video element. function display() { alert ("Thank you for watching! Stay tuned!"); } You could load the next clip in the onended event like in the below-given code var next = "path/of/next/video.mp4"; var video = document.getElementById('video'); video.onended = function(){ video.src = next; }
Read MoreConverting video to HTML5 ogg / ogv and mpg4
To convert video to ogg or mpg4, you need to use third-party software like Free HTML5 Video Player And ConverterAfter that, launch it and select input video files. Add files in any of the following formats −*.avi; *.ivf; *.div; *.divx; *.mpg; *.mpeg; *.mpe; *.mp4; *.m4v; *.webm; *.wmv; *.asf; *.mov; *.qt; *.mts; *.m2t; *.m2ts; *.mod; *.tod; *.vro; *.dat; *.3gp2; *.3gpp; *.3gp; *.3g2; *.dvr-ms; *.flv; *.f4v; *.amv; *.rm; *.rmm; *.rv; *.rmvb; *.ogv; *.mkv; *.ts.Now select the output location, click the “Browse...” button, and choose the location where the video would be saved.Select Presets, which are pre-configured. Select a player theme and click ...
Read MoreHow to find the size of localStorage in HTML?
localStorage is used to persist information across multiple sessions. It has a maximum size of 5MB.ExampleYou can try to run the following code snippet to check the size allocated −var sum = 0; // loop for size for(var i in localStorage) { var amount = (localStorage[i].length * 2) / 1024 / 1024; sum += amount; document.write( i + " = " + amount.toFixed(2) + " MB"); } document.write( "Total = " + sum.toFixed(2) + " MB");
Read MoreHow to apply antialiasing in HTML5 canvas drawImage()?
For antialiasing, you need to set resampling quality.ctx.imageSmoothingQuality = "low|medium|high"Use an off-screen canvas to reduce the image to half −var c = document.createElement('canvas'), ocx = c.getContext('2d'); c.width = img.width * 0.5; c.height = img.height * 0.5; ocxx.drawImage(img, 0, 0, c.width, c.height);// drawing images reducing to half again and repeating itocx.drawImage(c, 0, 0, c.width * 0.5, cc.height * 0.5);
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