2014.06.28 12:19
every r-value is a valid statement in some languages, but not in others
In some languages, every valid r-value is a valid statement. For example, in PHP, a program containing the following code:
<? 3 * 7; ?>
is valid. But in other languages, it is not. For example, in Java, including the following line in a program:
3 * 7;
causes a compilation error. And in JavaScript, it is an error to include a line like this:
function () {};
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