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Library question

Hello, admin, i have a question, if i use in a script a library from GitHub, but when i posted the script it was somethinf with GreasyFork whitelist, i wanted to upload library here of course with all the credits and link to author, but i get 404 error, please upload the library here if this it's better

link https://gist.github.com/BrockA/2625891/

P.S. just found posted https://greasyforks.org/en/scripts/1003-wait-for-key-elements but i hardly wish that this will be in GreasyFork Library

The upload bug aside but that function looks so wrong... Isn't MutationObserver the correct method of detecting any changes to DOM?

well, i found that library more easy to use, i just used for Одноклассники to remove ads blocks from middle of page, and when i scroll the content is loading and waitforkeyelements quick remove the blocks, **wOxxOm ** can you show me a simple example if it's possible to use MutationObserver in this case? my script is on GreasyFork

MutationObserver is better because it allows an immediate action on the modified/added content unlike the timer method.

I'm using on other site something like this:

var rxExclude = /Реклама|Промо|spravky\.ru|эпиляци|омоложение|варикоз|зрелые женщины|Зайди в нашу игру|Сыграем в покер/;

setMutationHandler(document, 'div.feed-list > div', function(observer, node) {
    if (node.textContent.match(rxExclude))
        node.style.setProperty('display', 'none');
});

function setMutationHandler(baseNode, selector, cb) {
  var ob = new MutationObserver(function(mutations){
    for (var i=0, ml=mutations.length, m; (i<ml) && (m=mutations[i]); i++)
      for (var j=0, nodes=m.addedNodes, nl=nodes.length, n; (j<nl) && (n=nodes[j]); j++)
        if (n.nodeType == 1) 
          if (n.matches(selector) || (n = n.querySelector(selector)))
            if (!cb(ob, n))
              return;
  });
  ob.observe(baseNode, {subtree:true, childList:true}); 
}

1. In each mutation notification it finds just the first matching node but this can be easily altered: instead of if (n.matches(selector) || (n = n.querySelector(selector))) use if ((n.matches(selector) && (n=[n])) || ((n=n.querySelectorAll(selector)) && n.length>0)) and then do a forEach or for enumeration in your callback.

2. You may want to replace textContent with innerHTML in case you'd like to exclude some urls or attributes.

i tried but it's seems not working, or i'm doing something wrong, but why this code is so big for a simple function), i guess i will stick to my code) it's working, that is what i want, thank you wOxxOm for your variant

seems not working

Well, mutation handlers should be attached before the document is loaded, so the script needs // @run-at document-start.

this code is so big

Not true: the actual modification is done in 3 lines, the same amount as in your code.

setMutationHandler(document, 'div.feed-list > div', function(observer, node) {
    if (node.textContent.match(rxExclude))
        node.style.setProperty('display', 'none');

The mutation handler has 11 lines, whereas that library has 98 lines.