Function outerExpr

docs/app/js/sanddance-app.js:148149–148149

(_)

    return ref(scope.add(Params(params)));
} // -- Utilities -----
const outerExpr = (_)=>_ && _.expr;
const outerField = (_)=>_ && _.field;
const isData = (_)=>_ === "data";
const isExpr = (_)=>_ === "expr";