function merge_tax_tables(t1, t2) {
if (t1.length == 0) return t2;
if (t2.length == 0) return t1;
- [start1, end1, rate1] = t1[0];
- [start2, end2, rate2] = t2[0];
+ const [start1, end1, rate1] = t1[0];
+ const [start2, end2, rate2] = t2[0];
if (start1 == start2) {
if (end1 == end2) {
return [[start1, end1, rate1 + rate2]].concat(merge_tax_tables(t1.slice(1), t2.slice(1)));