Function stableCompare

docs/tests/v2/es6/js/sanddance.js:76633–76635

* Generate an augmented comparator function that provides stable * sorting by tuple id when the given comparator produces ties. * @param {function} cmp - The comparator to augment. * @param {function} [f] - Optional tuple accessor function. * @return {function} An augmented comparator function.

(cmp, f)

function stableCompare(cmp, f) {
  return !cmp ? null : f ? (a, b) => cmp(a, b) || tupleid(f(a)) - tupleid(f(b)) : (a, b) => cmp(a, b) || tupleid(a) - tupleid(b);
}
},{}],"m0dW":[function(require,module,exports) {
"use strict";