The program has started to work with the live collection as it should. Now we can change the string output to the console to display a message on the app page.
To do this, we, as usual, must find the message in DOM and write it to the variable. And then we need to remove the hidden class from the message at the right moment so that it is displayed on the page. We already know how to remove classes. Use classList.remove() to do this.
Write the code and check that the message appears when all tasks in the list are completed.
children returns another collection type: HTMLCollection.
This collection contains only DOM elements. It may not include text content or line breaks as separate elements. All HTMLCollection are live in contrast to NodeList. You can read more about this collection in the specification and on MDN.
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What are you planning to do?</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/change-event">2. The “change” event</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/change-event-2">3. How the “change” event works</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/delete-element">4. Deleting the element from the list</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/check-collection-length">5. How to check the collection length</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/debug-code">6. Debugging the code</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/static-live-collection">7. Static and live collections</a></li><li class="main-nav__course-contents-item main-nav__course-contents-item--current"><a href="/courses/javascript-browser/dom/display-message">8. Displaying the message on the page</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/submit-event">9. The “submit” event</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/cancel-form-submit">10. Cancelling the form submission</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/obtain-text-input">11. How to obtain text from the input field</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/template-tag">12. Templates and the <template> tag</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/document-fragment">13. The contents of the <template> tag, document-fragment</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/clone-element">14. Cloning and inserting elements, part 1</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/clone-element-2">15. Cloning and inserting elements, part 2</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/clone-element-3">16. Cloning and inserting elements, part 3</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/clone-element-4">17. Cloning and inserting elements, part 4</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/clone-element-5">18. How to clone elements</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/add-new-element">19. Adding a new element to a list</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/delete-new-task">20. Deleting a new task in the list</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/clear-input">21. Clearing the input field</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/summary">22. Summary of “Actions with DOM”</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/dom/instant-messanger">23. 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fill="#EFA75B"/><path d="M31.963 50.968c-.197-.004-.358-.157-.372-.353-.018-.207.158-.378.364-.354 3.245-.26 3.505-2.156 3.608-2.25-.006-.19.183-.325.362-.26.193.01.35.16.363.354 0 .084 0 1.906 3.422 2 .192.008.348.16.362.353-.018.19-.172.34-.363.353-1.352.11-2.68-.4-3.61-1.386-.095-.096-.16-.22-.185-.353-.982 1.174-2.423 1.866-3.952 1.898z" fill="#151841"/><path d="M32.14 43.427c.186-.52 3.608.083 3.608.083s2.975-.688 3.422.084c-.05.288-.175.557-.363.78-.515-.056-1.037.004-1.525.178-.333.61-.488 1.304-.446 2-.222.394-.574.7-.995.864-.398-.112-.75-.354-.994-.688.047-.75-.146-1.496-.55-2.13-.27-.26-1.264.084-1.626-.083l-.53-1.088zm6.89.242c-.05.286-.175.556-.363.78-.503-.063-1.015-.012-1.497.148-.333.612-.487 1.305-.446 2-.222.394-.574.7-.995.864-.4-.112-.75-.354-.996-.688.053-.76-.14-1.515-.55-2.157-.268-.26-1.263.084-1.626-.084-.26-.23-.45-.53-.55-.864" fill="#CF4A27"/><path d="M35.748 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2.334.725-.13.837-1.46.93-2.13h.112c.937.492 1.647 1.33 1.98 2.334-.388.176-.793.31-1.21.4zm18.365-2.864c-1.104-.145-2.215-.232-3.33-.26-.546-.01-1.093.05-1.626.176-1.166.483-2.08 1.425-2.53 2.604l-.158.79 1.795.623c.558.153 1.132.24 1.71.26h.28c3.245-.177 4.137-3.72 4.137-3.72l.084-.353zm-1.264 1.86c-.54 1.394-2.882 1.646-2.966 1.646-.517-.02-1.03-.11-1.525-.26-.186-.085-.633-.26-1.08-.43.374-.966 1.117-1.746 2.065-2.165 0 .68.158 1.953.81 2.083.65.13.613-1.535.566-2.26.934.005 1.865.064 2.79.177-.11.316-.473.65-.66 1.17z" fill="#151841"/><path d="M19.26 39.27c.535 1.362 1.56 2.473 2.874 3.115.534.312 1.204-.07 1.207-.69.002-.285-.15-.55-.397-.695-.918-.46-1.65-1.222-2.073-2.158-.344-.957-1.972-.52-1.61.428zm29.45 3.125c1.083-.59 2.01-1.428 2.706-2.446.3-.556-.112-1.228-.743-1.21-.293.007-.56.17-.698.428-.568.776-1.306 1.412-2.158 1.86-.394.23-.517.742-.27 1.125.263.376.773.482 1.163.242z" fill="#EFA75B" stroke-width="13"/><path d="M16.025 32.436c1.525-1.386 2.427-4.408 2.79-6.835-.084.354 2.613.43 4.138-1.208 1.078-1.125.446-2-.186-3.375-1.71-3.552-4.585-6.323-7.384-8.918-.716-.69-1.44-2.428-2.706-2-.995.353-.93 3.2-.716 4.073 1.09 7.448 4.065 18.263 4.065 18.263zm37.372-.78c-1.704-1.826-2.822-4.12-3.208-6.585 0 .354-2.614.354-4.056-1.29-.995-1.127-.362-1.86.363-3.117 1.86-3.198 4.863-5.718 7.746-8.136.81-.604 1.627-1.47 2.79-.93.994.428.715 2.334.548 3.115-1.083 5.72-2.48 11.376-4.183 16.943z" fill="#FFF"/><path d="M53.564 20.422c-1.98.51-4.138 1.636-5.105 3.487-.43-2.196 1.645-4.65 3.393-5.832.333-.21.312-.703-.037-.886-.162-.085-.357-.076-.512.022-2.157 1.562-4.417 4.5-3.784 7.188.076.262.354.41.614.325l-.075.28c-.085.603.93.864.994.26.446-2.158 2.706-3.376 4.77-3.897.372-.076.522-.526.27-.81-.133-.15-.342-.204-.53-.138zM17.457 18.06c-.55-.354-.995.428-.55.865 1.433 1.004 3.182 3.05 3.395 4.956-.93-1.86-3.05-2.975-5.105-3.486-.386-.005-.633.41-.445.747.042.076.103.14.176.184 2.073.52 4.324 1.73 4.77 3.896.106.328.5.46.78.26.273.192.653.06.745-.26.735-2.66-1.6-5.728-3.766-7.16z" fill="#F1662A"/></svg></span><p class="course-loading-overlay__message"><b class="course-loading-overlay__message-title">Loading…</b><br><span class="course-loading-overlay__message-text">Everything will be ready in few seconds</span></p></div></div><div class="course-layout__sidebar course-theory"><div class="course-theory__inner course-theory__inner--left-stub"><button class="course-theory__close icon-close icon-close--light" type="button">Close</button><ul class="course-tabs course-tabs--non-interactive course-layout__theory-heading js--theory-tabs"><li class="course-tabs__item course-tabs__item--external course-tab course-tab--centered"><span class="course-tab__icon"><svg aria-hidden="true"><use xlink:href="/img/sprites/courses.svg#icon-theory"></use></svg></span><span class="course-tab__title">Theory</span></li><li class="course-tabs__item course-tabs__item--internal course-tab course-tab--centered course-tab--active js--theory-tab__theory"><span class="course-tab__icon"><svg aria-hidden="true"><use xlink:href="/img/sprites/courses.svg#icon-theory"></use></svg></span><span class="course-tab__title">Theory</span></li><li class="course-tabs__item course-tabs__item--internal course-tab course-tab--centered js--theory-tab__comments"><span class="course-tab__icon"><svg aria-hidden="true" style="width: 16px; height: 16px; fill: #2e2c9c;"><use xlink:href="/img/sprites/up.svg#comment"></use></svg></span><span class="course-tab__title">Comments</span></li></ul><section class="course-theory__content"><div class="js--theory-pane__theory course-theory__content-inner"><h1 class="course-theory__content-heading">Displaying the message on the page</h1><div class="course-theory__content-text"><p>The program has started to work with the live collection as it should. Now we can change the string output to the console to display a message on the app page.</p><p>To do this, we, as usual, must find the message in DOM and write it to the variable. And then we need to remove the <code>hidden</code> class from the message at the right moment so that it is displayed on the page. We already know how to remove classes. Use <code class="nowrap">classList.remove()</code> to do this.</p><p>Write the code and check that the message appears when all tasks in the list are completed.</p><div class="info info--frame-heading info--frame-heading--boremode info--gray"><p><code>children</code> returns another collection type: <code>HTMLCollection</code>.</p><p>This collection contains <b>only</b> DOM elements. It may not include text content or line breaks as separate elements. All <code>HTMLCollection</code> are live in contrast to <code>NodeList</code>. You can read more about this collection in the <a href="https://dom.spec.whatwg.org/#htmlcollection" target="_blank">specification</a> and on <a href="https://developer.mozilla.org/en-US/docs/Web/API/HTMLCollection" target="_blank">MDN</a>.</p></div></div></div><div class="js--theory-pane__comments hidden course-theory__content-inner"><div class="course-theory__content-text"><h2 class="course-theory__content-heading">Comments</h2><div id="disqus_thread"></div><script>
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(function() { // DON'T EDIT BELOW THIS LINE
var d = document, s = d.createElement('script');
s.src = 'https://htmlacademy.disqus.com/embed.js';
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</script><noscript>Please enable JavaScript to view the <a href="https://disqus.com/?ref_noscript">comments powered by Disqus.</a></noscript></div></div></section><div class="course-theory__controls"><button class="button button--close" type="button">To the task</button></div></div></div><div class="course-layout__column course-layout__column--left"><ul class="js--course-tabs course-tabs course-layout__course-tabs"><li class="js--editor-tab course-tabs__item course-tab course-tabs__item--limited course-tabs__item--limited-large course-tab--active" data-editor="html"><span class="course-tab__title course-tab__title--indent"><span class="course-tab__title-part course-tab__title-part--active">index.html</span></span><button class="js--editor-split course-tab__button course-tab__button--split" type="button"><svg aria-hidden="true"><use xlink:href="/img/sprites/courses.svg#icon-split"></use></svg><span class="tooltip tooltip--light tooltip--to-top tooltip--with-wrap tooltip--short course-tab__tooltip"><span class="tooltip__wrap">Split mode</span></span></button></li><li class="js--editor-tab course-tabs__item course-tab course-tabs__item--limited course-tabs__item--limited-large" data-editor="css"><span class="course-tab__title course-tab__title--indent"><span class="course-tab__title-part course-tab__title-part--active">style.css</span></span><button class="js--editor-split course-tab__button course-tab__button--split" type="button"><svg aria-hidden="true"><use xlink:href="/img/sprites/courses.svg#icon-split"></use></svg><span class="tooltip tooltip--light tooltip--to-top tooltip--with-wrap tooltip--short course-tab__tooltip"><span class="tooltip__wrap">Split mode</span></span></button></li><li class="js--editor-tab course-tabs__item course-tab course-tabs__item--limited course-tabs__item--limited-large" data-editor="js"><span class="course-tab__title course-tab__title--indent"><span class="course-tab__title-part course-tab__title-part--active">script.js</span></span><button class="js--editor-split course-tab__button course-tab__button--split" type="button"><svg aria-hidden="true"><use xlink:href="/img/sprites/courses.svg#icon-split"></use></svg><span class="tooltip tooltip--light tooltip--to-top tooltip--with-wrap tooltip--short course-tab__tooltip"><span class="tooltip__wrap">Split mode</span></span></button></li></ul><div class="course-layout__editors"><div class="js--editor course-editor course-layout__editor" id="" data-tab="html" data-split=""><span class="course-editor__label"><span class="course-editor__label-item">HTML</span><button class="course-editor__label-item course-editor__label-item--interactive hidden js--editor__unsplit-button course-editor__label-item--simple" title="No split" type="button"><svg width="7" height="10" viewBox="0 0 7 10" xmlns="http://www.w3.org/2000/svg"><g stroke="currentColor" fill="none" fill-rule="evenodd"><path stroke-linecap="round" d="M.6 3.503L3.443.518l2.842 2.985"></path><path d="M3.5 1.5v7.16" stroke-linecap="square"></path></g></svg></button></span><div class="course-editor__item" id="html-editor"><!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>The To-Do List</title>
<link href="style.css" rel="stylesheet">
</head>
<body>
<h1 class="visually-hidden">The To-Do List</h1>
<ul class="todo-list">
<li class="todo-list-item">
<label>
<input class="todo-list-input" type="checkbox">
<span>Feed the cat</span>
</label>
</li>
<li class="todo-list-item">
<label>
<input class="todo-list-input" type="checkbox">
<span>Leave the country</span>
</label>
</li>
<li class="todo-list-item">
<label>
<input class="todo-list-input" type="checkbox">
<span>Go for a run</span>
</label>
</li>
</ul>
<p class="empty-tasks hidden">All of the tasks have been completed. There are no new tasks.</p>
<form class="add-form" action="https://echo.htmlacademy.ru/courses" method="post">
<input class="add-form-input" type="text" aria-label="Task description" placeholder="For example, buy an elephant" required>
<button class="add-form-button" type="submit">Add new task</button>
</form>
<template id="task-template">
<li class="todo-list-item">
<label>
<input type="checkbox" class="todo-list-input">
<span></span>
</label>
</li>
</template>
<script src="script.js"></script>
</body>
</html>
</div></div><div class="js--editor course-editor course-layout__editor course-editor--hidden" id="" data-tab="css" data-split=""><span class="course-editor__label"><span class="course-editor__label-item">CSS</span><button class="course-editor__label-item course-editor__label-item--interactive hidden js--editor__unsplit-button course-editor__label-item--simple" title="No split" type="button"><svg width="7" height="10" viewBox="0 0 7 10" xmlns="http://www.w3.org/2000/svg"><g stroke="currentColor" fill="none" fill-rule="evenodd"><path stroke-linecap="round" d="M.6 3.503L3.443.518l2.842 2.985"></path><path d="M3.5 1.5v7.16" stroke-linecap="square"></path></g></svg></button></span><div class="course-editor__item" id="css-editor">@font-face {
font-weight: 400;
font-family: "Muller";
font-style: normal;
font-display: swap;
src: url("fonts/Muller.woff") format("woff");
}
body {
margin: 40px 32px;
font-size: 18px;
line-height: normal;
font-family: "Muller", sans-serif;
}
.visually-hidden,
.todo-list-input {
position: absolute;
width: 1px;
height: 1px;
margin: -1px;
padding: 0;
overflow: hidden;
white-space: nowrap;
border: 0;
clip: rect(0 0 0 0);
clip-path: inset(100%);
}
.hidden {
display: none;
}
.todo-list {
margin: 0;
padding: 0;
list-style: none;
}
.todo-list-item {
margin-bottom: 12px;
}
.todo-list-item label {
display: block;
padding: 12px 18px;
background-color: #ffffff;
border-radius: 4px;
box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15);
cursor: pointer;
user-select: none;
}
.todo-list-item span {
display: flex;
align-items: center;
}
.todo-list-input + span::before {
content: "";
display: inline-block;
width: 16px;
height: 16px;
margin-right: 16px;
background-color: #ffffff;
border: 2px solid #69b253;
border-radius: 4px;
}
.todo-list-input:checked + span::before {
background-color: #69b253;
background-image: url("check-white.svg");
background-repeat: no-repeat;
background-position: center;
}
.todo-list-input:not(:checked):hover + span::before,
.todo-list-input:not(:checked):focus + span::before {
background-color: rgba(105, 178, 83, 0.2);
}
.empty-tasks {
color: #69b253;
}
.empty-tasks::before {
content: "";
width: 14px;
height: 13px;
margin-right: 13px;
background-image: url("check-green.svg");
background-repeat: no-repeat;
background-position: center;
}
.add-form {
display: flex;
}
.add-form-input {
flex-grow: 1;
box-sizing: border-box;
height: 46px;
margin-right: 16px;
padding: 12px;
font: inherit;
border: 1px solid #a1b5c4;
border-radius: 4px;
}
.add-form-input:focus {
border: 1px solid #69b253;
outline: none;
}
.add-form-input:hover {
box-shadow: 0 0 6px rgba(105, 178, 83, 0.6);
}
.add-form-input::placeholder {
color: #a1b5c4;
}
.add-form-button {
flex-shrink: 0;
padding: 12px;
font: inherit;
color: #ffffff;
background-color: #69b253;
border: none;
border-radius: 4px;
user-select: none;
touch-action: manipulation;
}
.add-form-button:hover,
.add-form-button:focus {
background-color: #5aa045;
outline: none;
}
.add-form-button:active {
background-color: #42862e;
}
</div></div><div class="js--editor course-editor course-layout__editor course-editor--hidden" id="" data-tab="js" data-split=""><span class="course-editor__label"><span class="course-editor__label-item">JavaScript</span><button class="course-editor__label-item course-editor__label-item--interactive hidden js--editor__unsplit-button course-editor__label-item--simple" title="No split" type="button"><svg width="7" height="10" viewBox="0 0 7 10" xmlns="http://www.w3.org/2000/svg"><g stroke="currentColor" fill="none" fill-rule="evenodd"><path stroke-linecap="round" d="M.6 3.503L3.443.518l2.842 2.985"></path><path d="M3.5 1.5v7.16" stroke-linecap="square"></path></g></svg></button></span><div class="course-editor__item" id="js-editor">var list = document.querySelector('.todo-list');
var items = list.children;
var toggleEmptyListMessage = function () {
if (items.length === 0) {
console.log('All of the goals are completed!');
}
};
var addCheckHandler = function (item) {
var checkbox = item.querySelector('.todo-list-input');
checkbox.addEventListener('change', function () {
item.remove();
toggleEmptyListMessage();
});
};
for (var i = 0; i < items.length; i++) {
addCheckHandler(items[i]);
}
</div></div></div><div class="course-editor-controls"><button class="course-editor-controls__item course-editor-controls__item--answer" type="button">Show the answer</button></div><div class="js--feedback course-unhappy"><button class="js--feedback-btn course-unhappy__button" type="button"><span class="sr-only">Complain</span><svg aria-hidden="true"><use xlink:href="/img/sprites/courses.svg#unhappy"></use></svg></button><div class="js--feedback-modal course-unhappy__modal course-unhappy__modal--step-one"><form method="POST" action="/courses/javascript-browser/dom/display-message/signal" class="course-unhappy__form form"><input type="hidden" name="csrf_name" value="csrf69aebbd79801d"><input type="hidden" name="csrf_value" value="3c7a56624b38949a606038d05b6e2a28"><p class="course-unhappy__text">What didn’t you like in this task?</p><div class="course-unhappy__slide"><div class="course-unhappy__wrap"><div class="course-unhappy__list"><label class="checkbox checkbox--small"><input class="checkbox__input" name="problems" value="1" type="checkbox"><span class="checkbox__text">The code check doesn’t work</span></label><label class="checkbox checkbox--small"><input class="checkbox__input" name="problems" value="2" type="checkbox"><span class="checkbox__text">The task is too difficult</span></label><label class="checkbox checkbox--small"><input class="checkbox__input" name="problems" value="3" type="checkbox"><span class="checkbox__text">The theory is hard to understand</span></label><label class="checkbox checkbox--small"><input class="js--feedback-other-checkbox checkbox__input" name="problems" value="0" type="checkbox"><span class="checkbox__text">Other (will write below)</span></label></div><div class="course-unhappy__message"><label class="sr-only" for="id-message">Другое (сейчас напишу)</label><textarea class="field field--area" id="id-message" name="message" placeholder="For example, a typo in the word «heading»"></textarea></div></div></div><button class="course-unhappy__control course-unhappy__control--prev" type="button"><span class="sr-only">Prev</span><svg aria-hidden="true"><use xlink:href="/img/sprites/landings.svg#arrow"></use></svg></button><button class="course-unhappy__control course-unhappy__control--next" type="button" disabled><span class="sr-only">Next</span><svg aria-hidden="true"><use xlink:href="/img/sprites/landings.svg#arrow"></use></svg></button><button class="js--submit-btn button" disabled>Submit</button></form><p class="course-unhappy__result hidden">Thanks! We’ll fix everything at once!</p></div></div></div><div class="course-layout__column course-layout__column--right"><span class="course-separator-control"><svg aria-hidden="true"><use xlink:href="/img/sprites/courses.svg#icon-arrows-separator"></use></svg></span><div class="course-browser course-layout__browser"><div class="course-browser__menu"><span class="course-browser__menu-item course-browser__address"><span class="course-browser__menu-item-inner"><span class="course-browser__address-text"></span></span></span><button class="js--autorun course-browser__menu-item course-browser__menu-button course-browser__menu-button--text-with-icon course-browser__menu-button--autorun course-browser__menu-button--autorun-on" title="Autorun" type="button"><span class="course-browser__menu-item-inner"><svg aria-hidden="true"><use xlink:href="/img/sprites/courses.svg#icon-autorun"></use></svg>
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</p></div><div class="course-browser__menu course-browser__menu--vertical"><button class="course-browser__menu-item course-browser__menu-button course-browser__menu-button--increase" type="button" disabled title="Larger"><span class="course-browser__menu-item-inner">Larger</span></button><span class="course-browser__menu-item course-browser__zoom"><span class="course-browser__menu-item-inner">100%</span></span><button class="course-browser__menu-item course-browser__menu-button course-browser__menu-button--decrease" type="button" title="Smaller"><span class="course-browser__menu-item-inner">Smaller</span></button></div></div><div class="console console--modal console--modal-collapsed js--console"><div class="console__heading"><span class="console__heading-title">Console<span class="console__counter hidden js--console__counter"></span></span><button class="console__heading-button js--console__toggle" type="button" title="Switch console"><svg aria-hidden="true"><use xlink:href="/img/sprites/courses.svg#icon-collapse"></use></svg></button></div><div class="console__content js--console__content"></div></div><div class="course-goals js--goals"><div class="course-goals__heading"><span class="course-goals__heading-title"><span class="course-goals__count-label">Goals</span><span class="course-goals__count">completed</span></span><div class="js--annotations course-task-stats course-task-stats--disabled course-task-stats--centered "><span class="course-task-stats__indicator"><svg width="12" height="12" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="M15 8C15 11.866 11.866 15 8 15C4.13403 15 1 11.866 1 8C1 4.13403 4.13403 1 8 1C11.866 1 15 4.13403 15 8ZM16 8C16 12.4183 12.4183 16 8 16C3.58173 16 0 12.4183 0 8C0 3.58173 3.58173 0 8 0C12.4183 0 16 3.58173 16 8ZM6.7287 3.88849C6.6958 3.59229 6.92761 3.33325 7.22565 3.33325H8.77502C9.07306 3.33325 9.30487 3.59229 9.27197 3.88849L8.71643 8.88849C8.68829 9.14166 8.47424 9.33325 8.21948 9.33325H7.78119C7.52643 9.33325 7.31238 9.14166 7.28424 8.88849L6.7287 3.88849ZM9.33368 12.0001C9.33368 12.7365 8.73669 13.3334 8.00031 13.3334C7.26392 13.3334 6.66699 12.7365 6.66699 12.0001C6.66699 11.2637 7.26392 10.6667 8.00031 10.6667C8.73669 10.6667 9.33368 11.2637 9.33368 12.0001Z" fill="currentColor"></path></svg><span class="js--annotations-counter course-task-stats__counter">0</span></span><div class="course-task-stats__scroller-wrapper"><div class="course-task-stats__scroller"><ul class="js--annotations-list course-task-stats__list"></ul></div></div></div><button class="course-goals__button course-goals__button--expand js--goals__expand" type="button"><svg aria-hidden="true"><use xlink:href="/img/sprites/courses.svg#icon-collapse"></use></svg></button><a class="course-goals__button course-goals__button--next button button--green button--without-border hidden" href="/courses/javascript-browser/dom/submit-event" title="The “submit” event"><svg aria-hidden="true"><use xlink:href="/img/sprites/courses.svg#arrow-white--mini"></use></svg></a></div><div class="course-goals__content"><ol class="course-goals__list"><li class="course-goals__list-item">At the start of the program code, after the <code>items</code> variable, declare a variable <code>emptyListMessage</code> and write an element with the <code class="nowrap">empty-tasks</code> class to it<span class="mark">.</span></li><li class="course-goals__list-item">Delete the console output in the <code>toggleEmptyListMessage</code> function.</li><li class="course-goals__list-item">In the condition body, remove the <code>hidden</code> class from the <code>emptyListMessage</code> element. Use the <code>classList.remove</code> method<span class="mark">.</span></li><li class="course-goals__list-item">Mark all goals as completed.</li></ol></div></div></div></div></article></div><div class="course-interface__overlay course-interface__overlay--active"></div></main><script
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