LinkedIn - Script To Collect Emails From Comment List

script.js

/**
* Script to collect emails from comment list on LinkedIn
*
* 1 - Load the post page (must not be the activity page, but the post page itself - URL like this: /feed/update/*);
* 2 - Copy and Paste this code into your Browser Console Tab (press F12 or CTRL+SHIFT+I then click on Console tab. Just paste the code.);
* 3 - Press enter to execute the script, and wait until it is finished (could took some time, depends on your clicksLimit param below);
* 4 - After the end of execution, a list of all the emails will be presented. Just copy the list and do whatever you want with this.
* 
* This script uses all the tools already in-use by LinkedIn page. There is no external tools in use.
* If youre not confident about how it works, read the code. Its very simple and clear.
* Feel free to use, share and study this script.
* Im not responsible for bad usages. Be responsible, dont be a jerk.
*
* @author ma.ferreira93@gmail.com
*/

var timer;

var clicksCount = 0;
var clicksLimit = 5; // You can change this - its just a lock to prevent the browser from using too much memory.
var speedOfClick = 2000; // You can change this also. 1000ms means 1sec.

var listOfFoundedEmails = [];

function initScript() {
    simulateLoadMoreCommentsClick();
    timer = setInterval(simulateLoadMoreCommentsClick, speedOfClick);
}

function simulateLoadMoreCommentsClick() {
    var button = $("#show_prev");
    if (button && clicksCount < clicksLimit) {
        clicksCount += 1;
        console.log('Clicking ' + clicksCount);
        button.click();
        scrollPageToBottom();
    if (clicksCount > 60) {
        speedOfClick = speedOfClick + 1500;
    }
    } else {
        clearInterval(timer);
        console.clear();
        extractEmailsFromComments();
        console.log(listOfFoundedEmails.join("\n"));
    }
}

function scrollPageToBottom() {
    var n = $(document).height();
    $('html, body').animate({ scrollTop: n }, 50);
}

function extractEmailsFromComments() {
    var commentsList = document.getElementsByClassName('comments-comments-list')[0];
    for (var i = 0; i < commentsList.children.length; i++) {
        var comment = commentsList.children[i];
        if (!comment) continue;
        var commentContent = comment.getElementsByClassName('comments-comment-item-content-body')[0];
        if (!commentContent) continue;
        var emailsFoundedInComment = extractEmailFromString(commentContent.innerText);
        if (emailsFoundedInComment && emailsFoundedInComment.length > 0) {
            for (var j = 0; j < emailsFoundedInComment.length; j++) {
                var emailSanitized = emailsFoundedInComment[j].toString().toLowerCase();
                listOfFoundedEmails.push(emailSanitized);
            }
        }
    }
}

function extractEmailFromString(text) {
    return text.match(/([a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\.[a-zA-Z0-9._-]+)/gi);
}

initScript();