Function isUndefinedOrNull

test/unit/static/js/proclaim.js:335–337

(val)

    // Utility for checking whether a value is undefined or null
    function isUndefinedOrNull (val) {
        return (val === null || typeof val === 'undefined');
    }

    // Utility for checking whether a value is an arguments object
    function isArgumentsObject (val) {