Tag: Javascript

What is a browser bookmarklet?

A bookmarklet is a browser bookmark that contains JavaScript code instead of a web address. When clicked, bookmarklets can perform a wide variety of operations, such as running a search query from selected text or extracting data from a table. They are essentially bookmarks that run JavaScript code on the current page when clicked, allowing users to perform functions on the page they are already on instead of being directed to a new webpage. Bookmarklets are easy to use, portable, and can be shared across different devices. They are generally safer to use than standard programs, as they can only run when clicked and cannot access files on the hard drive.

Adding a badge to the favicon using JavaScript can be done by updating the image specified by the <link /> element with a new icon image.

This method involves JavaScript and creating an in-memory canvas element, applying the favicon image, drawing the badge shape and text on top, and then updating the <link /> element’s href attribute with the final composite of the canvas element’s image data as a Base64 encoded string.

You can use multiple methods in JavaScript to detect the browser zoom level, depending on the browser and the specific requirements of your application. Here are a few approaches to think about.

Sometimes you want to pause and resume executing event handlers. We may describe it that way: while step one isn’t done, step two is unavailable. JavaScript doesn’t have this functionality out of the box, but there is a way to mimic this feature.