reference username instead of name

nmarch213 · web-flow · commit 6ade929dd8a1 · 2024-07-11T12:00:48.000-07:00
diff --git a/book-content/chapters/05-unions-literals-and-narrowing.md b/book-content/chapters/05-unions-literals-and-narrowing.md
@@ -577,7 +577,7 @@ In this case, if `username` is not a string, we know it's `null` and could retur
 
 ```typescript
 function validateUsername(username: string | null | undefined): boolean {
-  if (typeof name !== "string") {
+  if (typeof username !== "string") {
     return false;
   }
 

Original file line number	Diff line number	Diff line change
@@ -577,7 +577,7 @@ In this case, if `username` is not a string, we know it's `null` and could retur
`577`	`577`
`578`	`578`	```typescript
`579`	`579`	`function validateUsername(username: string \| null \| undefined): boolean {`
`580`		`- if (typeof name !== "string") {`
	`580`	`+ if (typeof username !== "string") {`
`581`	`581`	`return false;`
`582`	`582`	`}`
`583`	`583`