IKatsuba · April 9, 2021 09:13
diff --git a/array-findLastIndex.ts b/array-findLastIndex.ts
 const items = [1, 2, 3, 4];
 //before
 const index = items.reverse().findIndex(fn); // the reverse method mutates the array 
 //after
 const index = items.findLastIndex(fn);
	const items = [1, 2, 3, 4];
	//before
	const index = items.reverse().findIndex(fn); // the reverse method mutates the array
	//after
	const index = items.findLastIndex(fn);