fix a minor bug in the example

TomSssM · TomSssM · commit 83cdcedf8190 · 2019-10-28T20:23:29.000+03:00
diff --git a/6-data-storage/01-cookie/article.md b/6-data-storage/01-cookie/article.md
@@ -310,7 +310,7 @@ function setCookie(name, value, options = {}) {
     ...options
   };
 
-  if (options.expires.toUTCString) {
+  if (options.expires && options.expires.toUTCString) {
     options.expires = options.expires.toUTCString();
   }
 

Original file line number	Diff line number	Diff line change
`@@ -310,7 +310,7 @@ function setCookie(name, value, options = {}) {`
`310`	`310`	`...options`
`311`	`311`	`};`
`312`	`312`
`313`		`- if (options.expires.toUTCString) {`
	`313`	`+ if (options.expires && options.expires.toUTCString) {`
`314`	`314`	`options.expires = options.expires.toUTCString();`
`315`	`315`	`}`
`316`	`316`