Files
test-repo/tests/flow-repo/optional/optional_param2.js
T
2020-05-08 00:55:46 +08:00

8 lines
143 B
JavaScript

declare class I<V> {
map<M>(
mapper: (value?: V) => M
): I<M>;
}
var i:I<number> = new I();
var j:I<number> = i.map(id => id);