論理和の計算
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>無題ドキュメント</title>
</head>
<script type="text/javascript">
var testValue1 = 1;
var testValue2 = 2;
var returnValue1 = testValue1 & 1;
var returnValue2 = testValue1 & 2;
var returnValue3 = testValue1 & 3;
document.write("testValue = " + testValue1 + " & 01 = " + returnValue1 + " " + testValue1 + " & 10 = " + returnValue2 + " " + testValue1 + " & 11 = " + returnValue3 + "<br />");
returnValue1 = testValue2 & 1;
returnValue2 = testValue2 & 2;
returnValue3 = testValue2 & 3;
document.write("testValue = " + testValue2 + " & 01 = " + returnValue1 + " " + testValue2 + " & 10 = " + returnValue2 + " " + testValue2 + " & 11 = " + returnValue3 + "<br />");
</script>
<body>
</body>
</html>
