Bleep Bleep (5/7): error despite correct(?) result (SOLVED)


e: Nevermind, found the error. Had to write voidLastTransaction instead of voidlastTransaction...

Hey everyone!

I'm stuck at exercise 5 of 7 aka Bleep Bleep:

I can get the console to print 8.55 as my total which should be the correct price if I did the math correctly. So everything is working as it should. However, when I try to submit I get the 'Oops, try again. false'-error. But I can't figure out why.

My code:

var cashRegister = {

    add: function(itemCost) { += itemCost;
        this.lastTransactionAmount = itemCost;
    scan: function(item,quantity) {
        switch (item) {
        case "eggs": this.add(0.98 * quantity); break;
        case "milk": this.add(1.23 * quantity); break;
        case "magazine": this.add(4.99 * quantity); break;
        case "chocolate": this.add(0.45 * quantity); break;
        return true;

    voidlastTransaction: function() { -= this.lastTransactionAmount; 



console.log('Your bill is '+;

Thank you!


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