I want to display prompt for user to make easy for him to copy some text which would be concatenation of Model properties.
If I do this:
function CopyToClipboard() {
window.prompt("Copy to clipboard: Ctrl+C, Enter", @Model.Id);
}
it works I get:

but If I want to pass property of type String, like this:
function CopyToClipboard() {
window.prompt("Copy to clipboard: Ctrl+C, Enter", @Model.FirstName);
}
there is no prompt.