Thankfully, using JavaScript to create this effect isn’t that difficult. In this article, I’m going to show you how to write the JavaScript code for a rollover, step by step.

Then add this line: function chgImg (imgField,newImg) { Here, you’re creating your first JavaScript function — a group of lines of code that you’ll use often.

Before passing a .NET object to a JavaScript function, your C# code must wrap it in a DotNetObjectRef object. As an example, the following code in my project's Index.cshtml OnInitAsync method ...

the onLoad () handler, which is invoked when the image has completed loading. This handler can be hooked up with a custom function to perform specific tasks after the image has completed loading.

Peter looks at how to call a JavaScript function from your TypeScript code and do it in a type-safe way. Along the way, he dramatically simplifies a Backbone application by integrating Knockout.

I wrote a small javascript function to show images in a popup window. The code is below.function imgpop (imgLocation) { img = new Image (); img.src = ...