You have to refer to the JavaScript method implemented JS (external-script.js) file in index.html properly and then call the function from .NET using IJSRuntime.
[wwwroot/index.html]
<body>
<app>Loading...</app>
<script src="_framework/blazor.webassembly.js"></script>
<script src="external-script.js"></script>
</body>[wwwroot/external-script.js]
window.methods = {
print: function (message) {
return "from js " + message
}
}[Pages/Index.razor]
@inject IJSRuntime JSRuntime
@code {
private async void PrintMessage()
{
Console.WriteLine(await JSRuntime.InvokeAsync<string>("methods.print", "here is the message"));
}
}
Share with