How do i reverse a string in Javascript with for loops?

Question

Could you please help with detailed explanation. Or if you could guide me step by step. I do not just get it.

Answer 1

Like this?

https://code.sololearn.com/WAFrdFzsm4nS/?ref=app

Answer 2

var word = "supercalifragilisticexpialidocious";
var newWord = "";
for (let i = word.length - 1; i >= 0; i--) {
newWord += word[i];
}
document.write(newWord);

First the string word and empty string newWord is created.

"i = word.length - 1" is 33 as the string word contains 34 characters.

Since this is 0-index based the first character has index 9 and final character has index 33, so newWord += word[33] makes newWord = "s", newWord += word[32] makes newWord = "su",
newWord += word[31] makes newWord = "suo",
etc....

and finally the loop goes through the letter's in the string breaks when i = -1, and the reversed original word is written.

Edit: Yep, that is what I mean't, happy to help :)

Answer 3

Thank you very much. You broke everything down for me. You meant that the first character has index 0, yes?

This is my code:

var word = "Elon Musk";
var newWord = "";
for (i = word.length - 1; i >= 0; i--) {
newWord += word[i];
}
document.write(newWord);

Answer 4

Thank you!