Please, help! I,m started reading book of Kirupa.

I,m started reading book of Kirupa, Javascript from zero.
there is an example, on page 70, about “for” cycles.
I must write the code, then see the result.
But nothing happened! i’m checked all past of code, there is all right!
please help! what should i do?

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Can you share the code you have written? Also, do you see any errors on the Console?

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the fact is that I don’t really understand this, I don’t know where this console is.

<!DOCTYPE html>

<html>

<head>

    <meta charset="utf-8">

    <title>Loops!</title>

    <style>

    </style>

</head>

<body>

    <script>

        for (let i = 0; i < 10; i++) {

            saySomething();

        }

        function saySomething() {

            document.writeIn("hello!");

        }

    </script>

</body>

</html>