TypeScript/tests/cases/conformance/types/literal/stringLiteralsWithEqualityChecks03.ts
2016-07-06 21:00:47 -07:00

30 lines
487 B
TypeScript

interface Runnable {
isRunning: boolean;
}
interface Refrigerator extends Runnable {
makesFoodGoBrrr: boolean;
}
let x: string;
let y: "foo" | Refrigerator;
let b: boolean;
b = x === y;
b = "foo" === y
b = y === "foo";
b = "foo" === "bar";
b = "bar" === x;
b = x === "bar";
b = y === "bar";
b = "bar" === y;
b = x !== y;
b = "foo" !== y
b = y !== "foo";
b = "foo" !== "bar";
b = "bar" !== x;
b = x !== "bar";
b = y !== "bar";
b = "bar" !== y;