You should try copying the code from this website and see, I find it to be of good quality.

JavaScript solution

function getMinCost(crew_id, job_id) {
    // Write your code here
    let cost = 0;
    const sortedCrew = crew_id.sort((a, b) => a - b);
    const sortedJob = job_id.sort((a, b) => a - b);

    for (let i = 0; i < crew_id.length; i++) {
        cost += Math.abs(sortedCrew[i] - sortedJob[i]);
    }

    return cost;
}

Here is my solution in java, javascript, python, C, C++, Csharp HackerRank Repair Roads Problem Solution

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Here is the solution of Repair Roads Click Here