javascript - javascriptで定数をメソッドの先頭に移動するのは良い習慣ですか?

Question

以下のスニペットでは、設定しました

privates.RADIX = 10;

10成功したコードで使用する代わりに。これは良い習慣ですか、それとも肛門保持ですか?

function peakOut = function (elem, offset, delay, callback) {
    var privates = {};

    // constants initialization

    privates.RADIX = 10;
    privates.GRAN_TIME = 15;
    privates.GRAN_DIST = 1;
    privates.UNITS = 'px';

    // privates initialization

    privates.el = elem;
    privates.start = parseInt($P.getComputedStyle(privates.el).getPropertyValue("top"),
            privates.RADIX);

    privates.status = 'down';
    privates.end = privates.start + offset;
    privates.current = privates.start;
    privates.id = null;

    (function next() {
        if ((privates.status === 'down') && (privates.current < privates.end)) {
            privates.current += privates.GRAN_DIST;
            privates.el.style.top = privates.current + privates.UNITS;
            if (!privates.id) {
                privates.id = $P.setInterval(next, privates.GRAN_TIME);
            }
        } else if ((privates.status === 'down') && (privates.current === privates.end)) {
            privates.status = 'up';
            $R.resetInterval(privates);
            $P.setTimeout(next, delay);
        } else if ((privates.status === 'up') && (privates.current > privates.start)) {
            privates.current -= privates.GRAN_DIST;
            privates.el.style.top = privates.current + privates.UNITS;
            if (!privates.id) {
                privates.id = $P.setInterval(next, privates.GRAN_TIME);
            }
        } else if ((privates.status === 'up') && (privates.current === privates.start)) {
            $R.resetInterval(privates);
            callback();
        }
    }());
};