tests/cases/conformance/expressions/unaryOperators/plusOperator/plusOperatorWithNumberType.ts(41,1): error TS2695: Left side of comma operator is unused and has no side effects.


==== tests/cases/conformance/expressions/unaryOperators/plusOperator/plusOperatorWithNumberType.ts (1 errors) ====
    // + operator on number type
    var NUMBER: number;
    var NUMBER1: number[] = [1, 2];
    
    function foo(): number { return 1; }
    
    class A {
        public a: number;
        static foo() { return 1; }
    }
    module M {
        export var n: number;
    }
    
    var objA = new A();
    
    // number type var
    var ResultIsNumber1 = +NUMBER;
    var ResultIsNumber2 = +NUMBER1;
    
    // number type literal
    var ResultIsNumber3 = +1;
    var ResultIsNumber4 = +{ x: 1, y: 2};
    var ResultIsNumber5 = +{ x: 1, y: (n: number) => { return n; } };
    
    // number type expressions
    var ResultIsNumber6 = +objA.a;
    var ResultIsNumber7 = +M.n;
    var ResultIsNumber8 = +NUMBER1[0];
    var ResultIsNumber9 = +foo();
    var ResultIsNumber10 = +A.foo();
    var ResultIsNumber11 = +(NUMBER + NUMBER);
    
    // miss assignment operators
    +1;
    +NUMBER;
    +NUMBER1;
    +foo();
    +objA.a;
    +M.n;
    +objA.a, M.n;
    ~~~~~~~
!!! error TS2695: Left side of comma operator is unused and has no side effects.