Method runGroup

docs/app/js/sanddance-app.js:6315–6329

(datum, group)

        } else return this.runExpressionOnColumn(datum, ex);
    }
    runGroup(datum, group) {
        let accumulator = this.runExpression(datum, group.expressions[0]);
        for(let i = 1; i < group.expressions.length; i++){
            let ex = group.expressions[i];
            switch(ex.clause){
                case "&&":
                    accumulator = accumulator && this.runExpression(datum, ex);
                    break;
                case "||":
                    accumulator = accumulator || this.runExpression(datum, ex);
                    break;
            }
        }
        return accumulator;
    }
    run(datum) {
        let accumulator = this.runGroup(datum, this.groups[0]);
        for(let i = 1; i < this.groups.length; i++){