cs11dotnet7/vscode/PracticalApps/Northwind.BlazorServer/wwwroot/scripts/interop.js

function messageBox(message) {
  window.alert(message);
}

function setColorInStorage() {
  if (typeof (Storage) !== "undefined") {
    localStorage.setItem("color",
      document.getElementById("colorBox").value);
  }
}

function getColorFromStorage() {
  if (typeof (Storage) !== "undefined") {
    document.getElementById("colorBox").value =
      localStorage.getItem("color");
  }
}