2014-07-13 01:04:16 +02:00
|
|
|
//// [additionOperatorWithNullValueAndInvalidOperator.ts]
|
|
|
|
// If one operand is the null or undefined value, it is treated as having the type of the other operand.
|
|
|
|
|
|
|
|
function foo(): void { return undefined }
|
|
|
|
|
|
|
|
var a: boolean;
|
|
|
|
var b: Object;
|
|
|
|
var c: void;
|
|
|
|
var d: Number;
|
|
|
|
|
|
|
|
// null + boolean/Object
|
|
|
|
var r1 = null + a;
|
|
|
|
var r2 = null + b;
|
|
|
|
var r3 = null + c;
|
|
|
|
var r4 = a + null;
|
|
|
|
var r5 = b + null;
|
|
|
|
var r6 = null + c;
|
|
|
|
|
|
|
|
// other cases
|
|
|
|
var r7 = null + d;
|
|
|
|
var r8 = null + true;
|
|
|
|
var r9 = null + { a: '' };
|
|
|
|
var r10 = null + foo();
|
|
|
|
var r11 = null + (() => { });
|
|
|
|
|
|
|
|
//// [additionOperatorWithNullValueAndInvalidOperator.js]
|
|
|
|
function foo() {
|
|
|
|
return undefined;
|
|
|
|
}
|
|
|
|
var a;
|
|
|
|
var b;
|
|
|
|
var c;
|
|
|
|
var d;
|
2014-08-12 00:54:12 +02:00
|
|
|
// null + boolean/Object
|
2014-07-13 01:04:16 +02:00
|
|
|
var r1 = null + a;
|
|
|
|
var r2 = null + b;
|
|
|
|
var r3 = null + c;
|
|
|
|
var r4 = a + null;
|
|
|
|
var r5 = b + null;
|
|
|
|
var r6 = null + c;
|
2014-08-12 00:54:12 +02:00
|
|
|
// other cases
|
2014-07-13 01:04:16 +02:00
|
|
|
var r7 = null + d;
|
|
|
|
var r8 = null + true;
|
|
|
|
var r9 = null + { a: '' };
|
|
|
|
var r10 = null + foo();
|
|
|
|
var r11 = null + (function () {
|
|
|
|
});
|