blazor javascript interop easy how to

sure! blazor is a web framework that allows developers to build interactive web applications using c instead of javascript. however, there are scenarios where you might want to leverage existing javascript libraries or functionalities. this is where javascript interop comes into play.

what is javascript interop in blazor?

javascript interop in blazor allows you to call javascript functions from your blazor components and vice versa. this is particularly useful when you want to use a javascript library or perform operations that aren't natively supported in blazor.

getting started with javascript interop

step 1: create a blazor project

you can create a new blazor project using the .net cli. open your terminal and run:

```bash
dotnet new blazorwasm -o blazorjsinteropdemo
cd blazorjsinteropdemo
```

this command creates a new blazor webassembly project in a folder named `blazorjsinteropdemo`.

step 2: add javascript file

```javascript
showalert: function (message) {
alert(message);
},
addnumbers: function (a, b) {
return a + b;
}
};
```

this javascript code defines an object with two functions: `showalert`, which displays an alert, and `addnumbers`, which adds two numbers.

step 3: reference the javascript file

```html
```

step 4: create a blazor component

```razor
@page "/"
@inject ijsruntime jsruntime

h3javascript interop in blazor/h3

button @onclick="showalert"show alert/button
button @onclick="addnumbers"add numbers/button

presult ...

#Blazor #JavaScriptInterop #WebDevelopment

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