script error

Question

I wrote a code
https://code.sololearn.com/WHdHzHUvyF1C/#js
It works, but always adds a script error. Why? What should I do?
Thanks!
LuMA

Answer 1

You're welcome 😄

Answer 2

All you have to do is check for readyState and status properties.

For instance:

Http.onreadystatechange = () -> {
If (Http.readyState === 4 && Http.status === 200) {
// Your code goes here.
} else {
// Error handling code goes here.
}
}

For a more in-depth guide please checkout this link: https://www.w3schools.com/js/js_ajax_http_response.asp

Answer 3

Thank you, Xianort!
Now, I got back 2 and 3 Http.readyState. Http.status is 200.