itliusir / op_cat Goto Github PK

    function opCat(stack) {
        if (stack.length < 2) {
            throw new Error("Not enough items in the stack to execute OP_CAT.");
        }
        let item1 = stack.pop();
        let item2 = stack.pop();
        return item2.concat(item1);
    }
    
    let stack = [["Black cat."], ["Cat with white spots."]];
    let isObserved = false;
    
    function updateCatState() {
        let catState;
        if (isObserved) {
            catState = opCat([...stack]); // Use OP_CAT to concatenate states.
        } else {
            catState = stack[0] + " & " + stack[1]; // Keep the states separate.
        }
        console.log("Current state of the cat: ", catState);
    }
    
    function toggleObservation() {
        isObserved = !isObserved;
        updateCatState();
    }
    
    // Initial state
    console.log("Initial state:");
    updateCatState();
    
    // Switch to observation state
    console.log("Switch to observation state:");
    toggleObservation();