[Project_owners] Is this valid JS?

[Paul Tomlin]

Assuming 'foo' is a function that returns a true/string/object on 
success, false/null/undefined on failure, is this valid and/or bad form?

function foobar() {
        var bar = foo() || return E_FAIL;
        // ....
}

IE: can I shortcut to a statement rather than an r-value (?)

There are many times I find myself doing

var foo = someFunction();
if (! foo) {
        return E_FAIL;
}

and thought I might start being a bit more efficient.

All assuming the failure is a 'normal' mode of operation.
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