myArray = [1, 2 ,3 , 4, 5,6 ,7];

function mapForEach(arr, fn) {
    var newArray = [];
    for (var i = 0; i < arr.length; i++) {
        newArray.push(
            fn(arr[i])
        );

    }

    return newArray;
}


function checkisLarger1(limiter, elm) {
    return  (elm) => {
        elm > limiter;
    }
}

function checkisLarger2(limiter, elm) {
    return elm > limiter;
}

function checkisLarger3(limiter) {
    return function(limiter, elm) {
        return elm > limiter;
    }.bind(this, limiter);
}
// newArray1 is erroroneous
var newArray1 = mapForEach(myArray, checkisLarger1(3));
var newArray2 = mapForEach(myArray, checkisLarger2.bind(this,3));
var newArray3 = mapForEach(myArray, checkisLarger3(3));

console.log(newArray1); // undefined
console.log(newArray2);
console.log(newArray3);