adding basic jest tests

2026-01-26 14:56:42 +08:00 · 2019-02-15 20:23:26 -08:00
parent 988aea6c1d
commit f019207dba
4 changed files with 28 additions and 0 deletions
--- a/step2-04/index.ts
+++ b/step2-04/index.ts
@@ -0,0 +1,3 @@
+export function square(x: number) {
+  return x * x;
+}