Question

How to find the index of the first element in int array that pass a test in JavaScript

Answer 1

const marks = [78, 92, 100, 86, 91];
 
function checkMark(mark) {
    return mark >= 80;
} 
 
console.log(marks.findIndex(checkMark));
 
 
/*
 
run:
 
1
 
*/

 

70+ SQL courses for beginners and professionals