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Deleted the full-stop as it's one sentence only
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@ -372,7 +372,7 @@ hash(1, 2);
The trick is called *method borrowing*.
We take (borrow) a join method from a regular array `[].join`. And use `[].join.call` to run it in the context of `arguments`.
We take (borrow) a join method from a regular array (`[].join`) and use `[].join.call` to run it in the context of `arguments`.
Why does it work?