function reverseArr(arr) {
var newArr = [], tempArr = [], len = arr.length;

for (var i = 0; i < len; i += 1) {
tempArr[i] = arr[i];
}

for (var j = 0; j < len; j += 1) {
newArr.push(tempArr.pop());
}
return newArr;
}

blueyedgeek:
Here's the reverseArr function.

function reverseArr(arr) {
var newArr = [], tempArr = [], len = arr.length;

for (var i = 0; i < len; i += 1) {
tempArr[i] = arr[i];
}

for (var j = 0; j < len; j += 1) {
newArr.push(tempArr.pop());
}
return newArr;
}

Will not modify the original array but return the reversed form.

Lemme start on the other one.

Nmeri17:
I'm just seeing this. it didn't work o. I'd have been surprised if it did coz its unusually long.

this is a weird question but did it work on yo system?? just wanno kno if mine is anti JavaScript

blueyedgeek:
Yep, it did. Was it throwing errors on yours or it wasn't doing what it was supposed to do.

Nmeri17:
errors. specifically complaining about that last return statement

blueyedgeek:
Could you copy and paste the error as is here for me to see?

uncaught
ReferenceError: newArr is not
defined 

Nmeri17:

uncaught
ReferenceError: newArr is not
defined 

davidsmith8900:
Not 2 spam or repeat myself in this post ~> https://www.nairaland.com/1793070/programming-challenge-beginners-n20000/4#24706681 .Im totally down with this, I just think that at the end of the day the main point of these challenges, competitions and study groups is to learn and practice right? So why not learn by making a real app that can help our society and give us money. Like experience is the best teacher. What if we did these challenges, competitions and study groups in order to make a real app like:

a. An app that can predict when NEPA will turn the light off or bring it on
b. An app that can predict what Naija streets will have the most traffic, the best route to take and where to go from there
c. An app that can predict where next crime or violence or Boko Haram attacks will be.

Or how do u feel?

Like lets team up to build apps that not only will add value to our society, but will also give us money and recognition.

We could also make a Facebook or Twitter or Google clone and then try to sell it. Pata pata, people will say they are not interested, but either way, we would have learn something. Or how does everyone feel?