• 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>parseFloat() 함수</h1>
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​
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    <script>
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        document.write(parseFloat("123") + "<br>");
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        document.write(parseFloat("123.000") + "<br>");
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        document.write(parseFloat("123.456") + "<br>");
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        document.write(parseFloat("12 34 56") + "<br>");
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        document.write(parseFloat("  123  ") + "<br>");
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        document.write(parseFloat("123 초콜릿") + "<br>");
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        document.write(parseFloat("초콜릿 123"));
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    </script>
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</body>
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​
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</html>