What do + and - do when you mix strings and numbers?
console.log(1 + "2");
console.log("3" - 1);
console.log("3" * "4");
console.log(1 + 2 + "3");
console.log("1" + 2 + 3);
console.log(true + 1);
console.log("b" + "a" + +"a" + "a");
The answer
Work out every line it logs, in order. Then check.
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