@polight/lego

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Tiny Web-Components lib for future-proof HTML mentors

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<!DOCTYPE html> <html lang="en-US"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=Edge"> <link rel="stylesheet" href="/assets/css/just-the-docs-default.css"> <script src="/assets/js/vendor/lunr.min.js"></script> <script src="/assets/js/just-the-docs.js"></script> <meta name="viewport" content="width=device-width, initial-scale=1">  <title>Bind an Event to a Web-Component | 🚀 Lego Web-Components</title> <meta name="generator" content="Jekyll v4.2.2" /> <meta property="og:title" content="Bind an Event to a Web-Component" /> <meta property="og:locale" content="en_US" /> <meta name="description" content="@ Directive for binding Events <script> function sayHi(event) { const buttonName = event.target.name alert(`You clicked ${ buttonName } to says hi! 👋🏼`) } </script> <template> <button @click="sayHi" name="the-button">click</button> </template>" /> <meta property="og:description" content="@ Directive for binding Events <script> function sayHi(event) { const buttonName = event.target.name alert(`You clicked ${ buttonName } to says hi! 👋🏼`) } </script> <template> <button @click="sayHi" name="the-button">click</button> </template>" /> <link rel="canonical" href="http://localhost:4000/v2/usage-web-components/events/" /> <meta property="og:url" content="http://localhost:4000/v2/usage-web-components/events/" /> <meta property="og:site_name" content="🚀 Lego Web-Components" /> <meta property="og:type" content="article" /> <meta property="article:published_time" content="2023-03-03T20:30:45+01:00" /> <meta name="twitter:card" content="summary" /> <meta property="twitter:title" content="Bind an Event to a Web-Component" /> <script type="application/ld+json"> {"@context":"https://schema.org","@type":"BlogPosting","dateModified":"2023-03-03T20:30:45+01:00","datePublished":"2023-03-03T20:30:45+01:00","description":"@ Directive for binding Events <script> function sayHi(event) { const buttonName = event.target.name alert(`You clicked ${ buttonName } to says hi! 👋🏼`) } </script> <template> <button @click="sayHi" name="the-button">click</button> </template>","headline":"Bind an Event to a Web-Component","mainEntityOfPage":{"@type":"WebPage","@id":"http://localhost:4000/v2/usage-web-components/events/"},"url":"http://localhost:4000/v2/usage-web-components/events/"}</script>  </head> <link rel="stylesheet" href="/assets/css/style.css" /> <body> <svg xmlns="http://www.w3.org/2000/svg" style="display: none;"> <symbol id="svg-link" viewBox="0 0 24 24"> <title>Link</title> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-link"> <path d="M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71"></path><path d="M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71"></path> </svg> </symbol> <symbol id="svg-search" viewBox="0 0 24 24"> <title>Search</title> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-search"> <circle cx="11" cy="11" r="8"></circle><line x1="21" y1="21" x2="16.65" y2="16.65"></line> </svg> </symbol> <symbol id="svg-menu" viewBox="0 0 24 24"> <title>Menu</title> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-menu"> <line x1="3" y1="12" x2="21" y2="12"></line><line x1="3" y1="6" x2="21" y2="6"></line><line x1="3" y1="18" x2="21" y2="18"></line> </svg> </symbol> <symbol id="svg-arrow-right" viewBox="0 0 24 24"> <title>Expand</title> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-chevron-right"> <polyline points="9 18 15 12 9 6"></polyline> </svg> </symbol> <symbol id="svg-doc" viewBox="0 0 24 24"> <title>Document</title> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file"> <path d="M13 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V9z"></path><polyline points="13 2 13 9 20 9"></polyline> </svg> </symbol> </svg> <div class="side-bar"> <div class="site-header"> <a href="http://localhost:4000/" class="site-title lh-tight"> 🚀 Lego </a> <a href="#" id="menu-button" class="site-button"> <svg viewBox="0 0 24 24" class="icon"><use xlink:href="#svg-menu"></use></svg> </a> </div> <nav role="navigation" aria-label="Main" id="site-nav" class="site-nav"> <div class="nav-category">v2.0 - alpha</div> <ul class="nav-list"><li class="nav-list-item"><a href="http://localhost:4000/v2/" class="nav-list-link">Welcome</a></li><li class="nav-list-item"><a href="http://localhost:4000/v2/getting-started/" class="nav-list-link">Getting Started</a></li><li class="nav-list-item active"><a href="#" class="nav-list-expander"><svg viewBox="0 0 24 24"><use xlink:href="#svg-arrow-right"></use></svg></a><a href="http://localhost:4000/v2/usage-web-components/" class="nav-list-link">Usage</a><ul class="nav-list "><li class="nav-list-item "><a href="http://localhost:4000/v2/usage-web-components/template/" class="nav-list-link">Template tag</a></li><li class="nav-list-item "><a href="http://localhost:4000/v2/usage-web-components/condition/" class="nav-list-link">Condition :if</a></li><li class="nav-list-item "><a href="http://localhost:4000/v2/usage-web-components/loop/" class="nav-list-link">Loop :for</a></li><li class="nav-list-item "><a href="http://localhost:4000/v2/usage-web-components/custom-directive/" class="nav-list-link">Custom directives</a></li><li class="nav-list-item active"><a href="http://localhost:4000/v2/usage-web-components/events/" class="nav-list-link active">Binding events</a></li><li class="nav-list-item "><a href="http://localhost:4000/v2/usage-web-components/reactive/" class="nav-list-link">Reactive properties</a></li><li class="nav-list-item "><a href="http://localhost:4000/v2/usage-web-components/attributes/" class="nav-list-link">Pass attributes</a></li><li class="nav-list-item "><a href="http://localhost:4000/v2/usage-web-components/slots/" class="nav-list-link">Using slots</a></li><li class="nav-list-item "><a href="http://localhost:4000/v2/usage-web-components/reactive-css/" class="nav-list-link">Reactive CSS</a></li><li class="nav-list-item "><a href="http://localhost:4000/v2/usage-web-components/script-tag/" class="nav-list-link">Script Tag</a></li></ul></li><li class="nav-list-item"><a href="http://localhost:4000/v2/naming-components/" class="nav-list-link">Naming Conventions</a></li><li class="nav-list-item"><a href="http://localhost:4000/v2/compile-components/" class="nav-list-link">Compiling</a></li><li class="nav-list-item"><a href="http://localhost:4000/v2/configuring-components/" class="nav-list-link">Configuring</a></li><li class="nav-list-item"><a href="http://localhost:4000/v2/advanced-components/" class="nav-list-link">Advanced Example</a></li><li class="nav-list-item"><a href="http://localhost:4000/v2/testing-components/" class="nav-list-link">Testing</a></li><li class="nav-list-item"><a href="http://localhost:4000/v2/advanced-webcomponents/" class="nav-list-link">Getting deep</a></li></ul> </nav> <footer class="site-footer"> <p>Version 2.0 pre-release</p> <p>Based on <a href="https://jekyllrb.com/">Jekyll</a> and <a href="https://github.com/pmarsceill/just-the-docs">Just the Docs</a>.</p> </footer> </div> </section> <div class="main" id="top"> <div id="main-header" class="main-header"> <div class="search"> <div class="search-input-wrap"> <input type="search" id="search-input" class="search-input" tabindex="0" placeholder="Search the Lego documentation" aria-label="Search " autocomplete="off"> <label for="search-input" class="search-label"><svg viewBox="0 0 24 24" class="search-icon"><use xlink:href="#svg-search"></use></svg></label> </div> <div id="search-results" class="search-results"></div> </div> </div> <div id="main-content-wrap" class="main-content-wrap"> <nav aria-label="Breadcrumb" class="breadcrumb-nav"> <ol class="breadcrumb-nav-list"> <li class="breadcrumb-nav-list-item"><a href="">Usage</a></li> <li class="breadcrumb-nav-list-item"><span>Bind an Event to a Web-Component</span></li> </ol> </nav> <div id="main-content" class="main-content" role="main"> <h4 id="-directive-for-binding-events"> <a href="#-directive-for-binding-events" class="anchor-heading" aria-labelledby="-directive-for-binding-events"><svg viewBox="0 0 16 16" aria-hidden="true"><use xlink:href="#svg-link"></use></svg></a> <code class="language-plaintext highlighter-rouge">@</code> Directive for binding Events </h4> <div class="language-html highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><script></span> <span class="kd">function</span> <span class="nx">sayHi</span><span class="p">(</span><span class="nx">event</span><span class="p">)</span> <span class="p">{</span> <span class="kd">const</span> <span class="nx">buttonName</span> <span class="o">=</span> <span class="nx">event</span><span class="p">.</span><span class="nx">target</span><span class="p">.</span><span class="nx">name</span> <span class="nx">alert</span><span class="p">(</span><span class="s2">`You clicked </span><span class="p">${</span> <span class="nx">buttonName</span> <span class="p">}</span><span class="s2"> to says hi! 👋🏼`</span><span class="p">)</span> <span class="p">}</span> <span class="nt"></script></span> <span class="nt"><template></span> <span class="nt"><button</span> <span class="err">@</span><span class="na">click=</span><span class="s">"sayHi"</span> <span class="na">name=</span><span class="s">"the-button"</span><span class="nt">></span>click<span class="nt"></button></span> <span class="nt"></template></span> </code></pre></div></div> <hr> <footer> <p class="text-small text-grey-dk-100 mb-0">Lego is <a href=https://github.com/polight/lego>open-source</a>. Distributed under <a href="https://github.com/polight/lego/tree/master/LICENSE.txt">MIT license.</a></p> <div class="d-flex mt-2"> </div> </footer> </div> </div> <a href="#" id="search-button" class="search-button"> <svg viewBox="0 0 24 24" class="icon"><use xlink:href="#svg-search"></use></svg> </a> <div class="search-overlay"></div> </div> </body> </html>