We figured out the Muffin gallery, and now it’s time for a new assignment. This time we need to program a gallery for an online vegetable store.
Muffin doesn’t like vegetables, including especially tomatoes. He prefers dairy products and meat dishes. But a job is a job.
Meow! We need to update a gallery of product photos.
The gallery has thumbnails (elements with the gallery__picture-preview class) and a large image (full-picture class).
The large photo should change after you click on the preview. The large image should be the same as the thumbnail, only with larger dimensions.
The paths to full-size photos can be found in the pictures array. The order of the elements in the array is the same as the order of the thumbnails in the markup.
When you are ready, press the Boss, here’s your program! button in the console to start the scan.
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Minimum of boring theory and lots of practical tasks."><meta name="twitter:image" property="og:image" content="https://htmlacademy.org/og/htmlacademy.png"><meta name="twitter:card" content="summary_large_image"><link rel="canonical" href="https://htmlacademy.org/courses/javascript-browser/events/second-program"><meta name="theme-color" content="#2f358f"></head><body class="course-interface course-interface--light" data-base="/assets/courses/30/"><header class="page-header page-header--course"><div class="page-header__inner"><div class="page-header__top"><a class="page-header__logo" href="/" aria-label="HTML Academy Home"><img src="https://assets.htmlacademy.org/img/logo--small.svg?cs=1218aec0be4a5f23db79ad29a14e30f7f9fb9a25" width="24" height="36" alt="HTML Academy"></a><nav class="main-nav main-nav--mini" role="navigation"><div class="main-nav__course-nav"><a class="main-nav__course-item main-nav__course-button main-nav__course-button--prev" href="/courses/javascript-browser/events/summary-2">Summary of “Events in JavaScript”, part 2</a><div class="main-nav__course-item main-nav__course-list main-nav__course-list--collapsed"><b class="main-nav__course-title">Getting to know events</b><span class="main-nav__course-stat">25/25</span><div class="main-nav__course-contents"><a class="main-nav__course-contents-link" href="/courses/javascript-browser/events">Back to the list of tasks</a><ul class="main-nav__course-contents-list"><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/intro-events">1. Introduction to events</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/add-handler">2. How to add a handler</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/arrange-events">3. How events are arranged</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/default-actions">4. Default actions</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/events">5. Please pass the function</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/hide-popup">6. Hiding the popup</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/press-key">7. Pressing a key</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/choose-key">8. Choosing a key</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/one-click">9. With one click</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/summary-1">10. Summary of “Events in JavaScript”, part 1</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/first-program">11. First program: “Don’t be shy”</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/photo-gallery">12. Welcome to our photo gallery</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/click-em-all">13. Click ’em all!</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/add-image">14. Adding an image</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/bug">15. A bug has crept into the system</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/scope">16. Scope</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/global-scope">17. Global scope</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/insideout-variables">18. Inside out variables</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/independent-variable">19. Becoming Independent</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/closure">20. Closures</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/school-prepare">21. Let’s prepare for school</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/fix-gallery">22. Fixing the gallery</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/heart-matter">23. Getting to the heart of the matter</a></li><li class="main-nav__course-contents-item"><a href="/courses/javascript-browser/events/summary-2">24. Summary of “Events in JavaScript”, part 2</a></li><li class="main-nav__course-contents-item main-nav__course-contents-item--current"><a href="/courses/javascript-browser/events/second-program">25. The Second Program: “Señor Tomato”</a></li></ul></div></div><a class="main-nav__course-item main-nav__course-button main-nav__course-button--next" href="/courses/javascript-browser/events">List of tasks</a></div><ul class="main-nav__list main-nav__list--user main-nav__list--user-guest"><li class="main-nav__item" itemprop="name"><a class="main-nav__link" href="/signup?redirect_url=%2Fcourses%2Fjavascript-browser%2Fevents%2Fsecond-program" title="Sign up" data-modal="open" data-value="register" itemprop="url"><span class="main-nav__icon" aria-hidden="true"><svg aria-hidden="true"><use xlink:href="/img/sprites/general.svg#user"></use></svg></span>Sign up</a></li><li class="main-nav__item main-nav__item--login" itemprop="name"><a class="main-nav__link" href="/login?redirect_url=%2Fcourses%2Fjavascript-browser%2Fevents%2Fsecond-program" title="Log in" data-modal="open" data-value="login" itemprop="url"><span class="main-nav__icon" aria-hidden="true"><svg aria-hidden="true"><use xlink:href="/img/sprites/general.svg#login"></use></svg></span>Log in</a></li></ul></nav></div></div></header><main class="course-container course-interface__content js-course"><div class="course-container__inner"><article class="course-layout"><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" title="Close">Close</button><ul class="course-tabs course-tabs--non-interactive course-layout__theory-heading"><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="courses#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"><span class="course-tab__icon"><svg aria-hidden="true"><use xlink:href="courses#icon-theory"></use></svg></span><span class="course-tab__title">Theory</span></li></ul><section class="course-theory__content"><div class="course-theory__content-inner"><h1 class="course-theory__content-heading">The Second Program: “Señor Tomato”</h1><div class="course-theory__content-text"><p>We figured out the Muffin gallery, and now it’s time for a new assignment. This time we need to program a gallery for an online vegetable store.</p><p>Muffin doesn’t like vegetables, including especially tomatoes. He prefers dairy products and meat dishes. But a job is a job.</p><blockquote><p>Meow! We need to update a gallery of product photos.</p><p>The gallery has thumbnails (elements with the <code class="nowrap">gallery__picture-preview</code> class) and a large image (<code class="nowrap">full-picture</code> class).</p><p>The large photo should change after you click on the preview. The large image should be the same as the thumbnail, only with larger dimensions.</p><p>The paths to full-size photos can be found in the <code>pictures</code> array. The order of the elements in the array is the same as the order of the thumbnails in the markup.</p></blockquote><p>When you are ready, press the <span class="course-theory__example-button">Boss, here’s your program!</span> button in the console to start the scan.</p></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"><ul class="course-tabs course-layout__course-tabs"><li class="course-tabs__item course-tabs__item--limited course-tabs__item--limited-large course-tab"><span class="course-tab__title">index.html</span></li></ul><div class="course-layout__editors"><div class="course-editor course-layout__editor"><span class="course-editor__label"><span class="course-editor__label-item">HTML</span></span><div class="course-editor__item" id="html"></div></div></div></div><div class="course-layout__column"><span class="course-separator-control"><svg aria-hidden="true"><use xlink:href="courses#icon-arrows-separator"></use></svg></span><div class="course-browser"><div class="course-browser__menu"><span class="course-browser__menu-item course-browser__address"><span class="course-browser__menu-item-inner">HTML</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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