Function encode

docs/app/js/sanddance-app.js:107308–107318

(t, set)

            return this;
        },
        encode (t, set) {
            if ((0, _vegaUtil.isFunction)(t)) modp.push({
                filter: t,
                field: set
            });
            else mod.push({
                tuple: t,
                field: set
            });
            return this;
        },
        clean (value) {
            clean = value;
            return this;