JavaScript interop in Blazor works in two ways: As well as being able to call JavaScript functions from Blazor code, we can call C# methods from JavaScript code.

In this lesson, we will learn how to call C# Blazor methods from JavaScript. Since there are multiple ways of doing so, we will use the following project setup. In this project, we’ve modified the standard Blazor WebAssembly template. In the Counter Razor component, instead of performing a simple increment when the user clicks a button, we do this via a chain of JavaScript interop calls to demonstrate how they work.

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