From c7cc166f72ef1bd699d14285c6704b32f7e4d5e6 Mon Sep 17 00:00:00 2001 From: Lavrentiy Rubtsov Date: Tue, 24 May 2022 02:08:03 +0600 Subject: [PATCH] =?UTF-8?q?=F0=9F=91=BE=20add=20clarifying=20example?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- 1-js/05-data-types/05-array-methods/article.md | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/1-js/05-data-types/05-array-methods/article.md b/1-js/05-data-types/05-array-methods/article.md index b14e9a0b..b3702bf3 100644 --- a/1-js/05-data-types/05-array-methods/article.md +++ b/1-js/05-data-types/05-array-methods/article.md @@ -249,6 +249,10 @@ alert( arr.indexOf(0) ); // 1 alert( arr.indexOf(false) ); // 2 alert( arr.indexOf(null) ); // -1 +let fruits = ['Plum', 'Apple', 'Orange', 'Plum'] +// note that the lastIndexOf method looks for from the end, but index counted from beginning +alert( fruits.lastIndexOf(Plum)) // 3 + alert( arr.includes(1) ); // true ```