how to compare two strings in javascript if condition

I'm having trouble recalling how to compare these two strings in an if statement. What I'm string to do is check if my variable compare equals page1 or page2 if not, go to the else statement.

var compare = "page3";

if (compare === "page1" || "page2") {
  document.body.innerHTML = "github url";
} else {
  document.body.innerHTML = "non-github url";
}