Function keys

purl.js:189–195

(obj)

    }

    function keys(obj) {
        var key_array = [];
        for ( var prop in obj ) {
            if ( obj.hasOwnProperty(prop) ) key_array.push(prop);
        }
        return key_array;
    }

    function purl( url, strictMode ) {
        if ( arguments.length === 1 && url === true ) {