Class variables also known as static variables are declared with the static keyword in a class, but outside a method, constructor or a block. There would only be one copy of each ... Read More

Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) is a network protocol for carrier transmission that operates in the Medium Access Control (MAC) layer. In contrast to CSMA/CD (Carrier Sense Multiple Access/Collision Detection) that deals with collisions after their occurrence, CSMA/CA prevents collisions prior to their occurrence.AlgorithmThe algorithm of CSMA/CA ... Read More

To mark superscripted text in HTML, use the … tag. Just keep in mind both the opening and closing tag is mandatory while using the ... tag.The superscript text appears to be half a character above the normal line. It is displayed as a smaller font.You can try the following ... Read More

To set the distance between lines, use the lineHeight property. You can try to run the following code to set the distance between lines in a text with JavaScript −ExampleLive Demo           Heading 1       This is Demo Text.This is Demo TextThis is ... Read More

To set all outline properties in one declaration, use the outline property. It sets the following properties: outline-width, outline-style, and outline-color.ExampleYou can try to run the following code to learn how to work with outline properties −Live Demo                    #box ... Read More

To set the border width, style, and color in a single declaration, use the border property in JavaScript.ExampleYou can try to run the following code to learn how to set border in JavaScript −Live Demo           Set border             ... Read More

You can try to run the following code to learn how to convert 1 to Boolean in JavaScript −ExampleLive Demo           Convert 1 to Boolean                var myVal = 1;          document.write("Boolean: " + Boolean(myVal));          

The ondragover event triggers when the dragged element is over the drop target.ExampleYou can try to run the following code to learn how to implement ondragover event in JavaScript −Live Demo                    .drag {             ... Read More

The window.history object is used to go back or to the next page of the web browser. It has the browser's history and comes with the following two methods −history.back − Go to previous URLhistory.next − Go to next URLExampleYou can try to run the following code to learn how ... Read More

It is quite possible to add multiple virtual generated columns in a MySQL table. It can be illustrated with the following example as follows −Examplemysql> Create table profit(cost int, price int, profit int AS (price-cost), price_revised int AS (price-2)); Query OK, 0 rows affected (0.73 sec) mysql> Describe profit; ... Read More