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<!DOCTYPE html>
<html>
<head>
<title>test ecmascript Number.isInteger()</title>
</head>
<body>
<h1>test ecmascript Number.isInteger()</h1>

<noscript><p>Javascript is disabled</p></noscript>
<script>
    function fits(x, y) {
        if (Number.isInteger(y / x)) {
            return 'YES';
        }
        return 'NO';
    }
    function gfits(x, y) {
        if (isInteger(y / x)) {
            return 'YES';
        }
        return 'NO';
    }

    document.write("<p>");
    try {
        document.write(fits(5, 10), fits(5, 11));
        document.write(gfits(5, 10), gfits(5, 11));
    } catch (e) {
        document.write(e);
    }
    document.write("</p>");

</script>

</body>
</html>