• 코드:
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<!DOCTYPE html>
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<html lang="ko">
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​
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<head>
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    <meta charset="UTF-8">
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    <title>JavaScript Predefined Function</title>
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</head>
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​
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<body>
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​
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    <h1>Number() 함수</h1>
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​
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    <script>
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        document.write(Number("123") + "<br>");
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        document.write(Number("123.000") + "<br>");
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        document.write(Number("123.456") + "<br>");
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        document.write(Number("12 34 56") + "<br>");
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        document.write(Number("123 초콜릿") + "<br><br>");
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        document.write(Number(true) + "<br>");
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        document.write(Number(false) + "<br>");
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        document.write(Number(new Date()) + "<br>");
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        document.write(Number(null));
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    </script>
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</body>
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​
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</html>