TSDocWhen enabled, TypeScript will check all code paths in a function to ensure they return a value.
ts
// @errors: 2366 2322
function lookupHeadphonesManufacturer(color: "blue" | "black"): string {
if (color === "blue") {
return "beats";
} else {
"bose";
}
}// @errors: 2366 2322
function lookupHeadphonesManufacturer(color: "blue" | "black"): string {
if (color === "blue") {
return "beats";
} else {
"bose";
}
}