javascript lastindexof array code example

Example 1: last index of array js

array.lastIndexOf(searchElement[, fromIndex]);

Example 2: lastindexof

var numbers = [2, 5, 9, 2];
numbers.lastIndexOf(2);     // 3
numbers.lastIndexOf(7);     // -1
numbers.lastIndexOf(2, 3);  // 3
numbers.lastIndexOf(2, 2);  // 0
numbers.lastIndexOf(2, -2); // 0
numbers.lastIndexOf(2, -1); // 3

Example 3: lastindexof js

string.lastIndexOf("subString")