Rule: 'required', javascript

function findProperty(obj, key) {
    if (typeof obj === "object") {
        if (key in obj) {
            return true;
        } else {
            return false;
        }
    }
    return false;
}

var rules = $(element).rules();
if (rules) {
    var isGreater = findProperty(rules, 'greaterthandate');
}

Source: stackoverflow.com

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