Existing code

I use the following code in ViolentMonkey (or GreaseKit or TamperMonkey) to refresh a page every 30 seconds:

setTimeout(function(){ location.reload(); }, 30*1000);

Can I make it stop?

This has been working fine for many years. But now, I want my code to NOT refresh the page if the following phrase is present: Important shizzle

(The reason I don't want it to refresh under this condition is because then I will no longer be able to see what was written.)

I am unenlightened

I know almost no Javascript. I've watched tutorials on YouTube, to try and learn the basics. I often google small questions and find answers on Stackoverflow (thanks all) - but I'm still very slow

---

Strategy thoughts

1. Search for the phrase Important shizzle - if it exists then end the script.
2. Then I'd just have my existing code: setTimeout(function(){ location.reload(); }, 30*1000);

Alas I cannot find an elegant Javascript mand to abruptly end the script.

Would this work?

if( !document.body.textContent.includes("Important shizzle")) location.reload();

The problem is that the above doesn't do it every 30 seconds, it just does it once

Existing code

I use the following code in ViolentMonkey (or GreaseKit or TamperMonkey) to refresh a page every 30 seconds:

setTimeout(function(){ location.reload(); }, 30*1000);

Can I make it stop?

This has been working fine for many years. But now, I want my code to NOT refresh the page if the following phrase is present: Important shizzle

(The reason I don't want it to refresh under this condition is because then I will no longer be able to see what was written.)

I am unenlightened

I know almost no Javascript. I've watched tutorials on YouTube, to try and learn the basics. I often google small questions and find answers on Stackoverflow (thanks all) - but I'm still very slow

---

Strategy thoughts

1. Search for the phrase Important shizzle - if it exists then end the script.
2. Then I'd just have my existing code: setTimeout(function(){ location.reload(); }, 30*1000);

Alas I cannot find an elegant Javascript mand to abruptly end the script.

Would this work?

if( !document.body.textContent.includes("Important shizzle")) location.reload();

The problem is that the above doesn't do it every 30 seconds, it just does it once

• javascript
• userscripts
• greasemonkey-4
• fluid-mac-app-engine

Share Improve this question Follow edited Aug 28, 2021 at 20:26 Nicholas Kunze asked Aug 28, 2021 at 19:27 Nicholas KunzeNicholas Kunze 5377 bronze badges 7

• 3 if( !document.body.textContent.includes("Important shizzle")) location.reload(); – Niet the Dark Absol Commented Aug 28, 2021 at 19:29
• How exactly is the tag fluid-mac-app-engine related to your post? – esqew Commented Aug 28, 2021 at 19:29
• It's because Fluid has built in "greasekit" functionality (same thing as greasemonkey) – Nicholas Kunze Commented Aug 28, 2021 at 19:33
• It's easy, but the true question to answer is HOW do you know when Important shizzle is on the page, with your code? The RELOAD script must run after the CHECK script that reads the emplacement of the text Important shizzle. – KeitelDOG Commented Aug 28, 2021 at 19:35
• @KeitelDOG can I use if( !document.body.textContent.includes("Important shizzle") ? – Nicholas Kunze Commented Aug 28, 2021 at 19:43

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3 Answers 3

Sorted by: Reset to default 3

You can read the .innerText property of the body, then use String#includes to see if your phrase is present.

If it is present you can return out of the function to end the script.

Something like this:

const timeout = setTimeout(function () {
  if (document.body.innerText.includes('Important shizzle')) return;
  location.reload();
}, 30 * 1000);

You can do it this way :

setInterval(reload, 30*1000);

function reload() {
    if ( isReloadOK() ) location.reload();
}

function isReloadOK(){
    if (document.body.textContent.includes("Important shizzle")) return false;
    return true;
}

You can have the timeout and you can ADD an interval and I will use the example from what you have shown already.. the most important part is clearTimeout

var timeout=setTimeout(function(){ location.reload(); }, 30*1000);
var interval=setInterval(()=>{
  let condition = document.body.textContent.includes("Important shizzle");
  if(condition){clearTimeout(timeout); clearInterval(interval)}
},0);