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javascripthtmlregextampermonkeyuserscripts

Playing a Sound Notification when Specific Text on Page Appears

I'm trying to figure out a way to play a sound notification whenever the phrase "2 credits" appears in the top right corner on a specific website at: https://www.submithub.com/. As it stands, that specific area of the site oscillates between "0 credits" and "2 credits" depending on if you've submitted to the site within the last few hours. Once you are able to submit again, the text changes to "2 credits."

I have also provided a screenshot of what I am talking about:

enter image description here

I have been using code primarily derived from the following StackOverflow thread: How can I have a Tampermonkey userscript play a sound when a specific word appears on a page?

Here is the code that I am working with:

// ==UserScript==
// @name     SubmitHub Notification
// @include  https://www.submithub.com/
// @grant    none
// ==/UserScript==
/* eslint-disable no-multi-spaces */

//-- Set the watched terms using the awesome power of regex.
var watchRegx = /\b2 credits\b/i;
var alrtSound = new Audio ("data:audio/mp3;base64,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");

//-- Customize this next for your page or get lazy and use "body".
var cntnrNode = document.querySelector ("#mainArea");
if (typeof cntnrNode === "undefined")   console.error ("TM: Container node not found.");
else {
    var wordObsrv = new MutationObserver (alertOnWord);
    wordObsrv.observe (document.body, {childList: true, subtree: true} );
}
function alertOnWord (mutationRecords) {
    mutationRecords.forEach (muttn => {
        if (muttn.type === "childList"  &&  typeof muttn.addedNodes === "object") {
            muttn.addedNodes.forEach (newNode => {
                /*-- Restrict the kinds of nodes watched for better performance
                    and/or to avoid false positives.
                */
                if (newNode.nodeName === "DIV"  ||  newNode.nodeName === "SPAN"  ||  newNode.nodeName === "P") {
                    if (watchRegx.test (newNode.textContent) ) {
                        console.log ("Found new instance of target term!");
                        alrtSound.play ();
                    }
                }
            } );
        }
    } );
}

As it stands, I cannot get "2 credits" to make any notification sounds via Regex, such as shown below, but I have been able to get just "credits" to work:

var watchRegx = /\b2 credits\b/i;

Here is the HTML of the specific part of the page where "2 credits" lies on the site:

<span class="grey black-text lighten-2 credit-counter"><span class="remaining">2</span> credits</span>

The nature of the HTML indicates that this might not be as simple as using a Regex with "2 credits." Maybe there is an easy solution. Any and all advice would be wonderful. Thanks in advance.

Solution

  • I simply changed the RegEx code to var watchRegx = /2 credits/; A simple enough solution. Thanks for all the feedback