ts-collection/lib/util/sortedset.js

This is re-write of the java collection classes in typescript. There is some tweak as typescript templates are not as equivalent as Java.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
function isSortedSet(param) {
    if (param === undefined || param === null) {
        return false;
    }
    return param.comparator !== undefined
        && param.subSet !== undefined
        && param.headSet !== undefined
        && param.tailSet !== undefined
        && param.first !== undefined
        && param.last !== undefined;
}
exports.isSortedSet = isSortedSet;