mirror of
https://github.com/zhigang1992/DefinitelyTyped.git
synced 2026-04-01 12:42:58 +08:00
b34953791c
I'm converting a node program I originally wrote in JS to TS, and
without this, the following pattern causes tsc to error out (tested
under 1.6):
```
let buf = current.read(); // current is a ReadableStream
if (buf !== null)
output.write(buf);
```
With:
```
src/bin/cat.ts(28,17): error TS2345: Argument of type 'string | Buffer' is not assignable to parameter of type 'string'.
```