Found 8894 Articles for Front End Technology

HTML5 Canvas and select / drag-and-drop features in a JS library?

Naveen Singh
Updated on 04-Mar-2020 06:14:29

524 Views

If you want to use HTML5 canvas to draw shapes, texts and curves and also want to attach traditional DOM events like onClick or drag and drop functions, a crossbar framework Raphael is used for doing drag and drop or touch events.This technology uses SVG and XML for older versions of IE.  Drag and drag using HTML is shown below.  Example                    Raphaël · Drag-n-drop                                                   ... Read More

How to use multiple click event on HTML5 canvas?

Naveen Singh
Updated on 04-Mar-2020 06:13:50

289 Views

When there is a circle drawn on canvas and we put red color on half and grey color on a portion of a circle, then on clicking a red color, we call function1.On clicking grey part, function 2 is called and we need to use reusable path objects to store different parts, which we want to test. Click handler can be used to share the canvas and do our desired work. Path2D objects can be used to store path information.var path1 = new Path2D(); var path2 = new Path2D(); var newpaths = [path1, path 2];   // Array is ... Read More

Choose which option is selected on pageload of razor Html.DropDownListFor() in HTML?

Naveen Singh
Updated on 04-Mar-2020 06:13:12

101 Views

Shorthand is used to decide which option is selected on pageload of razor Html.DropDownListFor(). You can try to run the following code snippet −// return Boolean value @Html.DropDownListFor(m => m.Valeur, new List< SelectListItem > { //new list item list item1 is generated new SelectListItem { Value = "0" , Text = "Show", Selected = Model.Valeur == 0 }, new SelectListItem { Value = "1" , Text = "Hide", Selected = Model.Valeur != 0 }, }, new { @class = “selectnew" })

Solve unknown gap between elements in Flexbox with HTML5.

Naveen Singh
Updated on 24-Jun-2020 14:06:10

169 Views

Unknown gaps between elements in flexbox are due to margin collapsing of the header to the bar division. To resolve this −Either Margin is reset to 0 for header or Border is added to the bar.Padding can be done to bar by adding property padding: 10px to bar. Try the following code snippet to resolve the unknown gap problem −.bar {    background: yellow;    color: gray;    height: 250px;    padding: 10px;    text-align: center; }

HTML5 Geolocation without SSL connection

Naveen Singh
Updated on 02-Jun-2020 07:41:28

584 Views

HTML 5 Geolocation is used to find out the location of the user. This can be without SSL connection. This can be generated as follows −// Variable apigeo shows successful location: var apigeo = function(position) {    alert("API geolocation success!lat = " + position.coords.latitude + "lng = " + position.coords.longitude); }; var tryapigeo = function() {    jQuery.post( "check the location on google map", function(success) {       apiGeolocationSuccess({coords: {latitude: success.location.lat, longitude: success.location.lng}});    }) //Gives success on given geolocation    .failure(function(err) { //On failure, alert with failure is shown       alert("error while showing geolocation! "+err);   ... Read More

How to get materialize CSS checkbox to work with @Html.CheckBoxFor?

Naveen Singh
Updated on 04-Mar-2020 06:08:57

147 Views

The only way to materialize CSS checkbox to work with Html.checkbox without disappearance of the checkbox to the left is by moving the hidden element to the bottom of the parent element.$("input[type='hidden']").each(checkbox1 (0,IsActive ) {    $(this).appendTo($(IsActive).parent()); });In this hidden element, IsActive is placed in the bottom of parent element thus removing the disappearance of the checkbox to left and thus materializing CSS checkbox to work with HTML.checkbox.

What are Pure HTML export buttons in jQuery Data Table?

Naveen Singh
Updated on 24-Jun-2020 14:06:49

133 Views

jQuery Data Table provides export buttons with the help of which we can make a structure like the following −Export PDFExport CSVExport HTMLExport ExcelFor this, we need to write code −var tbl = $('#extable').DataTable({      dom: 'export',        buttons: [          {                 extend: 'collection',                 text: 'Export',                 buttons: [ 'csvHtml5', ' pdfHtml5', 'copyHtml5', 'excelHtml5' ]          }        ] });

Changing three.js background to transparent or another color in HTML

Naveen Singh
Updated on 23-Nov-2023 14:22:48

983 Views

If you want a transparent background in three.js, you need a pass in the alpha parameter to the WebGLRenderer constructors in the below-given code − var renderer = new THREE.WebGLRenderer( {alpha: true } ); // You can leave the clear color at the defaultvalue. renderer.setClearColor( 0x000000, 0 ); //default However, to set the background color, renderer.setClearColor(0xb0f442 );

Convert HTML5 into standalone Android App

Naveen Singh
Updated on 20-Nov-2023 12:13:12

1K+ Views

Steps Follow the below-given steps to convert HTML5 into standalone Android App You need to first create an Android app using Eclipse. Move HTML code to /assets folder −The Assets provide a way to include arbitrary files such as text, XML, music, fonts, and video in your application. Load web view with the file − android_asset/ file  enable javascript Layout for WebView While creating a layout for WebView − WebVieww = new WebView(this); w.loadUrl("http://www.app.com/");

What is the difference between SVG and HTML5 Canvas?

Naveen Singh
Updated on 01-Jun-2020 11:14:08

9K+ Views

The HTML element is a container for SVG graphics. SVG stands for Scalable Vector Graphics. SVG and useful for defining graphics such as boxes, circles, text, etc. SVG stands for Scalable Vector Graphics and is a language for describing 2D-graphics and graphical applications in XML and the XML is then rendered by an SVG viewer. Most of the web browsers can display SVG just like they can display PNG, GIF, and JPG.The HTML element is used to draw graphics, via JavaScript. The element is a container for graphics.SVGHTML CanvasSVG has better scalability. So it can be printed with ... Read More

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