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function alertModal(title, body) {
  // Display error message to the user in a modal
  $('#alert-modal-title').html(title);
  $('#alert-modal-body').html(body);
  $('#alert-modal').modal('show');
}

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Checklist for new websites

Once you're done coding your site, go through this checklist to make sure you have a W3C compliant, valid HTML, secure, maximally-compatible, optimal-performance, responsive and mobile-friendly, SEO-friendly website.

SEO

• <title> is keyword friendly
• <meta name="description" content="" />
• ``

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Convert sequence of GoPro Hero 6 Black JPEG images to MKV / MP4 video

ffmpeg \
  -r 30000/1001 \
  -pattern_type glob -i '*.JPG' \
  -vf "crop=in_w:in_w*9/16,scale=3840:-2" \
  -sws_flags lanczos \
  -pix_fmt yuv420p \
 -vcodec libx264 \

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<select>
    <option value="AF">Afghanistan</option>
    <option value="AL">Albania</option>
    <option value="DZ">Algeria</option>
    <option value="AS">American Samoa</option>
    <option value="AD">Andorra</option>
    <option value="AO">Angola</option>
    <option value="AI">Anguilla</option>
    <option value="AQ">Antarctica</option>
    <option value="AG">Antigua and Barbuda</option>

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Exterior

• Windshield free of cracks
• Body panel colors match
• Magnet adheres to all steel body panels
• Fresh paint job (if yes, it could be to conceal rust)
• Seams where the trunk and hood close are properly aligned
• Seams where doors and fenders meet are properly aligned
• Free of body scratches
• Free of body dents

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<table>
  <thead>
    <tr>
      <th>Payment</th>
      <th>Issue Date</th>
      <th>Amount</th>
      <th>Period</th>
    </tr>
  </thead>
  <tbody>

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const strikethroughText = text =>
  text.split('').reduce((acc, char) =>
    acc + char + '\u0335', '')

// strikethroughText("amazingly few discotheques provide jukeboxes")
// "a̵m̵a̵z̵i̵n̵g̵l̵y̵ ̵f̵e̵w̵ ̵d̵i̵s̵c̵o̵t̵h̵e̵q̵u̵e̵s̵ ̵p̵r̵o̵v̵i̵d̵e̵ ̵j̵u̵k̵e̵b̵o̵x̵e̵s̵"

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// ==UserScript==
// @name       KeepAlive
// @namespace  https://billmei.net
// @version    0.1
// @description  Prevents Queen's MyCareer, Moodle, and D2L from timing out
// @include      https://careers.sso.queensu.ca/*
// @include      https://moodle.queensu.ca/*
// @include      https://qsblearning.ca/*
// @copyright  2014, Bill Mei
// ==/UserScript==

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// In the new EdX, a redirect is required to go inside the iframe before executing custom JavaScript
open(document.getElementById('unit-iframe').src)

// After the new tab is opened, you can run the code below in that tab (not the old tab).
// To use, paste into your DevTools console, create a bookmarklet, or use a browser extension like Tampermonkey.
const addSpeedOption = (speed) =>
  $('.video-speeds').prepend(`<li data-speed="${speed}"><button class="control speed-option" tabindex="-1" aria-pressed="false">${speed}x</button></li>`)

addSpeedOption(2);
addSpeedOption(2.5);

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// From https://stackoverflow.com/a/55885836/2142259
var jq = document.createElement('script');
jq.src = "https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"
document.getElementsByTagName('head')[0].appendChild(jq);