Why does not my code work as the the one provided??( in terms of printing the value 0 1 2 3 ...like that ....check the code pls)

Question

https://code.sololearn.com/WqIZL5QGTT9i/?ref=app
https://code.sololearn.com/W5wHuejAfLIL/?ref=app

Answer 1

[ ] That's because the JS is executed before the site is loaded. Copy the script and paste it between <script></script> tags at the end of your html file (before the </body> tag)

Answer 2

[ ] as explained by Anna, the JS is running before the DOM is actually loaded. Another way to manage this is to wrap your code in a function body which is then called when the document load event fires.

window.onload = function(){
//Insert your current code here...
}

Answer 3

It works if you change it from o=document.getElementsByClassName("g") to o=document.getElementById("g") and change the element's class to id

Answer 4

thanks David Carroll Anna

Answer 5

Anna when i do it by id its saying cant set 'innerHTML 'to null....
https://code.sololearn.com/WxRU3DJzQtAA/?ref=app

Answer 6

[ ] Your new code (‘by id’) works for me.

Answer 7

document.getElementsByClassName("g") returns an Array. So, you have to use o[0] in order to access your element:
o[0].innerHTML = ...