Tell us what’s happening:
So I am trying to make a function the takes one argument, a string. And I am trying to make it reverse. So in order to do that I have to convert in into an array. So [h,e,l,l,o] becomes [o,l,l,e,h] and comes out as a string 'olleh'. I managed to convert it into an array. I am trying to test out my method before making a for loop. I tried unshift(a[b]) and b=a.length so it would add the last letter to the front. But its says [undefined, h, e, l, l,o] and I am stuck here, I was gonna use pop() to delete the last letter and make a loop until the array was reversed. Can someone explain why it is undefined?
Your code so far
function reverseString(str) {
let a = []
a = [...str];
const b = a.length;
a.unshift(a[b]);
return a;
}
console.log(reverseString("hello"));
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Challenge: Reverse a String
Link to the challenge:
