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Found 2202 Articles for HTML

189 Views
In HTML, forms for user input are created using the tag. The form tag uses a lot of different elements. When submitting a form, the novalidate attribute of the HTML tag is used to indicate that the form-data should not be validated. This attribute is a Boolean one. Following are the examples… Example In the following example we are using novalidate to make the form disabled after getting submitted. DOCTYPE html> Name: ... Read More

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In this article we are going to learn about how to execute a script when an error occurs in HTML. If an error happens while loading an external file, the onerror event is started (e.g. a document or an image). Let’s look into the following examples to understand more about how to execute a script when an error occurs in HTML. Using HTML Example In the following example we are using img to get displayed on our webpage using img src. ... Read More

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When an element has been dragged in HTML to a valid drop target, the ondragenter attribute fires.ExampleYou can try to run the following code to implement the ondragenter attribute − #boxA, #boxB { float:left;padding:10px;margin:10px; -moz-user-select:none; } #boxA { background-color: #6633FF; width:75px; height:75px; } #boxB { background-color: #FF6699; width:150px; height:150px; } function dragStart(ev) { ev.dataTransfer.effectAllowed = 'move'; ev.dataTransfer.setData("Text", ev.target.getAttribute('id')); ev.dataTransfer.setDragImage(ev.target,0,0); return true; } Drag and drop HTML5 demo Try to drag the purple box around. Drag Me Dustbin

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The ondurationchange attribute triggers when the length of the audio/ video changes in HTML.ExampleYou can try to run the following code to implement ondurationchange attribute − Your browser does not support the video element. function display(vLength) { alert("Video Length: " + vLength.duration + " seconds"); }

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When a text selection or draggable element is dropped onto an authorised drop target, the ondrop event is triggered. It is simpler to move an object to a different area by engaging notion of drag and drop. Following are the examples… Example In the following example we are using executing a javascript when the draggable element is dropped in . DOCTYPE HTML> .droptarget { float: left; width: 100px; height: 35px; ... Read More

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In HTML, user input is obtained via the tag. The min and max properties, which indicate a maximum and minimum value for an input field, are used to limit the input field. Use the maxlength attribute to restrict the number of characters. Syntax Following are the examples… Example In the following example we are using the maxlength attribute with the input type to allow maximum number of elements. DOCTYPE html> style> body { text-align: center; } ... Read More