Update to TypeScript 3.7 (#3275)

and update to prettier 1.19

Also, update `assert()` and remove not null assertions where possibly
in `cli`.

Closes #3273

1 files changed, 2 insertions, 2 deletions

diff --git a/cli/js/url_search_params.ts b/cli/js/url_search_params.ts
index 0835133d5..803b37ee4 100644
--- a/cli/js/url_search_params.ts
+++ b/cli/js/url_search_params.ts
@@ -168,8 +168,8 @@ export class URLSearchParams {
    *       searchParams.sort();
    */
   sort(): void {
-    this.params = this.params.sort(
-      (a, b): number => (a[0] === b[0] ? 0 : a[0] > b[0] ? 1 : -1)
+    this.params = this.params.sort((a, b): number =>
+      a[0] === b[0] ? 0 : a[0] > b[0] ? 1 : -1
     );
     this.updateSteps();
   }