X、Y、および Z が 3 に等しい場合、locationName は Sol に等しいはずですが、そうではありません。問題は変数名が更新されていないことにあると思いますが、それは別のものである可能性があります。
<!DOCTYPE html>
<html>
<head>
<title>Jordan's Space Explorer </title>
</head>
<body>
<button onclick="goNorth()">Go North</button>
<button onclick="goSouth()">Go South</button>
<button onclick="goEast()">Go East</button>
<button onclick="goWest()">Go West</button>
<button onclick="goUp()">Go Up</button>
<button onclick="goDown()">Go Down</button>
<button onclick="locationQuery()">Where am I?</button>
<button onClick="quit"()>Quit</button>
</body>
<script>
// Confirm user wants to play.
confirm("Do you want to play Jordan's Space Explorer?");
alert("The game is working.");
// Declare start location.
var locationY = 0;
var locationX = 0;
var locationZ = 0;
var locationName = "in Space";
//Go directions
function goNorth(){
locationY ++;
console.log("You head North.");
}
function goSouth(){
locationY --;
console.log("You head South.");
}
function goEast(){
locationX ++;
console.log("You head East");
}
function goWest(){
locationX --;
console.log("You head West");
}
function goUp(){
locationZ ++;
console.log("You go up.");
}
function goDown(){
locationZ --;
console.log("You go down.");
}
function locationQuery(){
console.log("X" +locationX);
console.log("Y" +locationY);
console.log("Z" +locationZ);
console.log("You are " +locationName);
}
// Encounters
if(locationX === 3 && locationY === 3 && locationZ === 3){
locationName = "Sol";
alert("Arrived at " + locationName);
}
if(locationX===0 && locationY===0 && locationZ===0){
alert("It worked.");
}
</script>
</html>
私はプログラミングが初めてで、助けていただければ幸いです。