How to check if a string contains text from an array of substrings in NodeJS and then find the index of that substring in the array?

Question

I am able to determine the first part of the question which is to return true if a string contains text from an array of substrings in NodeJS using this:

var allowedRoles = [
    "Area Director",
    "Managing Director",
    "Group Director"];

var currentRole = "USA Managing Director";
var lifeSaver = allowedRoles.some((substring) =>
    currentRole.includes(substring)
);
console.log(lifeSaver);

Here my result is true. But, I want to know that where in the allowedRole array my result returned true. (Expected answer: 1);

Answer 1

Instead of using .some you can use .findIndex

The findIndex() method returns the index of the first element in the array that satisfies the provided testing function. Otherwise, it returns -1, indicating that no element passed the test.

var lifeSaver = allowedRoles.findIndex((substring) =>    
    currentRole.includes(substring)
);