console.log(case_insensitive_search('JavaScript Exercises','Exercises'));

console.log(case_insensitive_search('JavaScript Exercises','Exercisesss'));

function case_insensitive_search(str1, str2)
{
    var temp = str1.includes(str2);
  //  console.log(temp);
    if(temp)
    {
        return 'Matched';
    }
    else
    {
        return 'Not Matched';
    }
}