You can use a $where. Just be aware it will be fairly slow (has to execute Javascript code on every record) so combine with indexed queries if you can. db.T.find( { $where: function() { return this.Grade1 > this.Grade2 } } ); or more compact: db.T.find( { $where : “this.Grade1 > this.Grade2” } ); UPD for … Read more
PetSerAl, as he routinely does, has provided the crucial pointer in a comment on the question: Member-access enumeration – the ability to access a member (a property or a method) on a collection and have it implicitly applied to each of its elements, with the results getting collected in an array, was introduced in PSv3.[1] … Read more
Probably there could be better solutions, but the following should work for you: public static void main(String[] args) { Integer[] a = new Integer[] { 1, 0, 0, 1, 0, 0 }; List<Integer> a1 = Arrays.asList(a); Integer[] b = new Integer[] { 0, 1, 1, 0, 0, 0 }; List<Integer> a2 = Arrays.asList(b); List<Integer> a3 … Read more
There are different things that can be called strings in C++, std::string is the main one, and that already provides those operators. C-style null terminated strings are another, and string literals yet another. For the latter two, you cannot overload operator< or operator>, as you can only overload operators for user defined types. Even if … Read more
If you don’t care about the order of elements you can do this: def compare(a, b): return ‘matched’ if sorted(a) == sorted(b) else ‘unmatched’ a = [1,1,3,4] b = [3,1,4,1] print(compare(a, b)) >>> ‘matched’