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JavaScript JavaScript Loops, Arrays and Objects Tracking Data Using Objects Accessing Object Properties

Posted by MIAN OSAMA ARSHAD
MIAN OSAMA ARSHAD
Courses Plus Student 1,569 Points

Uncaught TypeError: Cannot set property 'innerHTML' of null at print (script.js:29) at script.js:32?

var student={ name:'osnan', age :23, batch:'1511a', skills:['html','css','ms office'], country:'us'

};

function print( message){
var div=document.getElementById('a');
div.innerHTML=message;

    }

print(student.age); //html <!doctype html> <html> <head> <meta charset="utf-8"> <title>Untitled Document</title> <script src="script.js"></script> </head>

<body> <div id="a"></div> </body> </html>

2 Answers

Konrad Traczyk
Konrad Traczyk
22,287 Points
Konrad Traczyk
Konrad Traczyk
22,287 Points

Hello, your script runs before all DOM has been loaded, so basiclly you trying to get element which isn't parsed yet that's why you get error.

Place your script tags after body closing tag thats ensures you that whole document has been already parsed when the script starts executing.

<!doctype html>
<html>
    <head>
        <meta charset="utf-8">
        <title>Untitled Document</title>
    </head>
    <body>
        <div id="a"></div>
    </body> 
    <script src="script.js"></script>
</html>

Hope it helps.

MIAN OSAMA ARSHAD
MIAN OSAMA ARSHAD
Courses Plus Student 1,569 Points

thanks :)

RODRIGO MARTINEZ
RODRIGO MARTINEZ
5,912 Points
RODRIGO MARTINEZ
RODRIGO MARTINEZ
5,912 Points

Just wanted to say thanks too. As this solution helped me with another project :)

Joseph M.
Joseph M.
2,057 Points
Joseph M.
Joseph M.
2,057 Points

thanks. helped me from pulling my hair out in frustration