Rock, Paper, Scissors, Rope Preview

var userChoice = prompt("Do you choose rock, paper, scissors or rope?");
var computerChoice = Math.random();
if (computerChoice <= 0.25) 
    {
      computerChoice = "rock";
    } 
else if (0.26 <= computerChoice <= 0.50) 
    {
      computerChoice = "paper";
    }  
else if (0.51 <= computerChoice <= 0.75)
    {
      computerChoice = "scissors";
    } 
else
    {
        computerChoice = "rope";
    }
    
console.log("Computer: " + computerChoice);