How to replace html?

Asked Sep 06 '16 at 03:15

Active Sep 06 '16 at 07:55

Viewed 38 times

I'm wondering how I could replace html in javascript but I need it to work for tampermonkey, Here's some of the scripts I used

document.getElementById("id").innerHTML = "Example";

and

var element = document.getElementById("h1");
element.innerHTML = "Example"

I've tried these scripts with tampermonkey but they end up not working and I get a error, here's the error I get

ERROR: Execution of script 'New Userscript' failed! Cannot set property 'innerHTML' of null (anonymous function) @ (program):2

Can someone help me out please? it'd be appreciated :D

asked Sep 06 '16 at 03:15

Helen Rider

@KrisRoofe Huh? I lost tag? I'm sorry but I'm a bit confused – Helen Rider Sep 06 '16 at 03:23
post your code, or run your js code in the console, and see the info. – LF00 Sep 06 '16 at 03:25
Kk I'll do that – Helen Rider Sep 06 '16 at 03:26
2

Since it is getting `null` for `getElementById()` call, the element doesn't exist or your code is firing before it's made. Are you making sure the script is run after the dom is ready? Either by setting tampermonkey settings to inject the script after dom loaded, or using something like an onload event? – Patrick Evans Sep 06 '16 at 03:28
Ok here `Uncaught TypeError: Cannot set property 'innerHTML' of null(…) (anonymous function) @ VM16074:1` @KrisRoofe – Helen Rider Sep 06 '16 at 03:30
If you ran that in the console, then there is no element in the page with an id attribute set to `h1`, ie `
`. – Patrick Evans Sep 06 '16 at 03:33
```
Hello World!
``` ```document.getElementById("p1").innerHTML = "New text!";``` Like here ```p1``` the ```id``` or ```h1``` should be an id. – aavrug Sep 06 '16 at 03:33
I did put the id... @aavrug – Helen Rider Sep 06 '16 at 03:36
@HelenRider Try with some custom name not use reserved keywords like ```id``` or ```h1```. – aavrug Sep 06 '16 at 03:39
@aavrug I have... :/ I don't know what's wrong – Helen Rider Sep 06 '16 at 03:48
@HelenRider can you post your html part for the `div` you are trying to replace. – jaysingkar Sep 06 '16 at 03:54

0 Answers0