JS string reversal- how this code works?

Question

function reverseString(print) {
let result = "";
for(let char of print) {
result = char + result;
}
return result;
}

Hi so this code takes in text and reverses it. For example:
input: 'Hello, World!'
output: '!dlroW ,olleH'

but I dont quite understand it, could someone explain how it works? Also do any of you have a way of figuring out how and why a code works?

Thanks!

Answer 1

reverseString("Hello"):

result = "H"
result = "e"+"H" (="eH")
result = "l"+"eH"
...
result = "o"+"lleH" (="olleH")

Answer 2

Hey Aymane Boukrouh and Sergiu Panaite understand his question guys 🙂

Answer 3

Initially the result is empty. you add first char from string in result. then you add second one in front of result and so on.

Answer 4

thanks a lot @Aymane Boukrouh!

Answer 5

var str='Hello world';
alert(str.split('').reverse().join(''))

Answer 6

// Or
var str='Hello world';
for(let i=str.length-1; i>0; i--)
document.write(str[i]);