find_leaders_in_array.js

// Definition of Leader: Any Element which is greater than all the values to its right

function findLeadersInArray(arr) {
    const leaders = [];
    arr.forEach((a, i)=> {
        if (i=== arr.length-1) {
            leaders.push(a);
            return leaders;
        }
        
        const toCheck = arr.slice(i+1)
        
        console.log(toCheck);
        const isLeader = toCheck.every((e) =>{ 
            if (a!==e) {
                return a > e
            } else return true
        });
        console.log(a, isLeader);
        if (isLeader) leaders.push(a);
    })
    return leaders;
}

const ans = findLeadersInArray([12, 5, 8, 15, 14, 7, 2, 4])

console.log('ans:> ', ans);

this is a tiger analytics interview question.