Difference between indexof and findindex function of array

Question

Can anyone tell me what’s the difference between indexof and findindex function in JavaScript?

Answer 1

indexOf() - it returns the first occurrence of an element which can be found in the array. It returns -1, if the element is not present. 

Below is the example for indexOf():

Const list_of_fruits = ['orange', 'apple', 'mango', 'strawberry', 'kiwi', ‘orange’];

console.log(list_of_fruits.indexOf('orange'));

// output: 0

// starts from index 1

console.log(lists_of_fruits.indexOf('orange', 1));

// output: 5

console.log(list_of_fruits.indexOf('banana'));

// -1

If you want to learn more about Java, then go through this Java tutorial by Intellipaat for more insights.