refactor: utilize type narrowing (#33075)

PR Close #33075
2019-10-09 17:17:52 +02:00
parent 1ae77da609
commit 6ab5f3648a
29 changed files with 73 additions and 80 deletions
--- a/packages/core/testing/src/async_fallback.ts
+++ b/packages/core/testing/src/async_fallback.ts
@ -45,7 +45,7 @@ export function asyncFallback(fn: Function): (done: any) => any {
      }
      runInTestZone(fn, this, done, (err: any) => {
        if (typeof err === 'string') {
-          return done.fail(new Error(<string>err));
+          return done.fail(new Error(err));
        } else {
          done.fail(err);
        }