please who can help me?😢

Question

i have an error in java script which said:
uncought typeError: cannot set property 'onclick' of null

please who can help me for fixing it😟

this is the code

https://code.sololearn.com/WverON6Tt9Yp/?ref=app

Answer 1

wrap your entire javascript code with

window.onload = function(){ ....your code.... }

and leave it as onclick

this is caused by the javascript loading before the html

and because of that it looks for an element that has not been created yet, thus resulting in am error

Answer 2

¯\_(ツ)_/¯

Answer 3

thanks for all
@Burey
@kamil
@Melik Melik Sonmez

Answer 4

i changed it to onClick but nothing happen😐

Answer 5

@burey is absolutely right, that error occurs because of the order the computer reads your code, in the code playground the computer will read the js before your html, at that point your button isn't alive yet^^

Answer 6

i really really thank you for your good answer

Answer 7

yeah burey should get it ^^ I can't see new answers while I'm typing :/

Answer 8

Well thanks I was wondering why that happened

Answer 9

@burey given the answer and Kamil got approval :)
by the way i missed the load thing sorry for mis lead

Answer 10

line 62 it should be onClick not onclick