Publish a package to npm registry
📦 Node.js->AI phrase
✨ The Prompt Phrase
npm publish
💻 Code Preview
📦 All-in-One Code
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Publish a package to npm registry - Interactive Tutorial</title>
<link href="https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700;900&family=Fira+Code:wght@400;500;600&display=swap" rel="stylesheet">
<style>
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.demo-container {
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.terminal {
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font-size: 1.1rem;
font-weight: 600;
cursor: pointer;
transition: all 0.3s ease;
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.checkbox {
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border: 2px solid var(--accent-npm);
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.tip {
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.warning::before { content: '⚠️ '; font-size: 1.5rem; }
.success {
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.success::before { content: '✅ '; font-size: 1.5rem; }
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.highlight {
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.confetti {
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width: 10px;
height: 10px;
background: var(--accent-npm);
animation: confetti-fall 3s linear forwards;
z-index: 9999;
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@keyframes confetti-fall {
to {
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@media (max-width: 768px) {
.hero h1 { font-size: 2rem; }
.command-display { font-size: 1.2rem; padding: 15px 20px; }
.section-title { font-size: 1.8rem; }
.card { padding: 25px; }
.step { padding-left: 80px; }
.step::before { width: 50px; height: 50px; font-size: 1.5rem; }
}
</style>
</head>
<body>
<div class="progress-container">
<div class="progress-bar" id="progressBar"></div>
</div>
<div class="hero">
<div class="hero-content">
<div class="npm-icon">📦</div>
<h1>Master npm publish!</h1>
<div class="command-display">npm publish</div>
<p>Share your package with the world! 🚀</p>
</div>
</div>
<div class="container">
<!-- What Is It -->
<section class="section">
<h2 class="section-title">🤔 What Is npm publish?</h2>
<div class="card">
<p style="font-size: 1.2rem; margin-bottom: 20px;">
<code>npm publish</code> is the command that <span class="highlight">uploads your package</span> to the npm registry, making it <strong>publicly available</strong> for anyone to install and use! 📦
</p>
<p style="margin-bottom: 20px;">
Think of it like publishing a book! 📚 You've written your code (the manuscript), and now you're making it available in the world's largest JavaScript library (npm) where millions of developers can discover and use it!
</p>
<div class="info">
<strong>Breaking It Down:</strong>
<ul style="margin-left: 30px; margin-top: 10px; line-height: 2;">
<li><code class="code-npm">npm</code> - Node Package Manager</li>
<li><code class="code-npm">publish</code> - Upload package to registry</li>
<li>Reads from <code>package.json</code> in current directory</li>
<li>Creates a tarball and uploads to npmjs.com</li>
<li>Makes package installable via <code>npm install your-package</code></li>
</ul>
</div>
<div style="margin-top: 30px;">
<h3 style="color: var(--accent-pink); margin-bottom: 15px;">What's the npm Registry? 🔍</h3>
<p>The npm registry is a massive public database of JavaScript packages - over 2 million packages! It's like GitHub for published, ready-to-use code libraries.</p>
</div>
</div>
</section>
<!-- Pre-publish Checklist -->
<section class="section">
<h2 class="section-title">✅ Pre-Publish Checklist</h2>
<div class="card">
<div class="checklist">
<h3 style="margin-bottom: 20px;">Make sure you've done these first! 🎯</h3>
<div class="checklist-item" onclick="toggleCheck(this)">
<div class="checkbox"></div>
<div>
<strong>Create npm account</strong>
<div style="color: var(--text-secondary); font-size: 0.9rem;">Sign up at npmjs.com</div>
</div>
</div>
<div class="checklist-item" onclick="toggleCheck(this)">
<div class="checkbox"></div>
<div>
<strong>Login via CLI</strong>
<div style="color: var(--text-secondary); font-size: 0.9rem;">Run: npm login</div>
</div>
</div>
<div class="checklist-item" onclick="toggleCheck(this)">
<div class="checkbox"></div>
<div>
<strong>Valid package.json</strong>
<div style="color: var(--text-secondary); font-size: 0.9rem;">Name, version, description required</div>
</div>
</div>
<div class="checklist-item" onclick="toggleCheck(this)">
<div class="checkbox"></div>
<div>
<strong>Unique package name</strong>
<div style="color: var(--text-secondary); font-size: 0.9rem;">Check availability on npmjs.com</div>
</div>
</div>
<div class="checklist-item" onclick="toggleCheck(this)">
<div class="checkbox"></div>
<div>
<strong>Add README.md</strong>
<div style="color: var(--text-secondary); font-size: 0.9rem;">Documentation is crucial!</div>
</div>
</div>
<div class="checklist-item" onclick="toggleCheck(this)">
<div class="checkbox"></div>
<div>
<strong>Test your package</strong>
<div style="color: var(--text-secondary); font-size: 0.9rem;">Make sure it works!</div>
</div>
</div>
</div>
</div>
</section>
<!-- Why Use It -->
<section class="section">
<h2 class="section-title">✨ Why Publish to npm?</h2>
<div class="card">
<div class="feature-grid">
<div class="feature-card">
<div class="feature-icon">🌍</div>
<div class="feature-title">Global Reach</div>
<p style="color: var(--text-secondary);">Share with millions!</p>
</div>
<div class="feature-card">
<div class="feature-icon">🔄</div>
<div class="feature-title">Easy Updates</div>
<p style="color: var(--text-secondary);">Version management!</p>
</div>
<div class="feature-card">
<div class="feature-icon">📦</div>
<div class="feature-title">Dependency Management</div>
<p style="color: var(--text-secondary);">npm handles it all!</p>
</div>
<div class="feature-card">
<div class="feature-icon">🎯</div>
<div class="feature-title">Portfolio Building</div>
<p style="color: var(--text-secondary);">Show your skills!</p>
</div>
<div class="feature-card">
<div class="feature-icon">🤝</div>
<div class="feature-title">Open Source</div>
<p style="color: var(--text-secondary);">Contribute to community!</p>
</div>
<div class="feature-card">
<div class="feature-icon">📊</div>
<div class="feature-title">Download Stats</div>
<p style="color: var(--text-secondary);">Track your impact!</p>
</div>
</div>
</div>
</section>
<!-- How It Works -->
<section class="section">
<h2 class="section-title">⚙️ How Does It Work?</h2>
<div class="card">
<div class="steps">
<div class="step">
<h3>Step 1: Authentication Check</h3>
<p>npm verifies you're logged in with valid credentials.</p>
</div>
<div class="step">
<h3>Step 2: Read package.json</h3>
<p>Extracts package name, version, and metadata.</p>
</div>
<div class="step">
<h3>Step 3: Validation</h3>
<p>Checks if package name is available and version is new.</p>
</div>
<div class="step">
<h3>Step 4: Create Tarball</h3>
<p>Bundles your code into a compressed .tgz file.</p>
</div>
<div class="step">
<h3>Step 5: Upload</h3>
<p>Sends tarball to npm registry servers.</p>
</div>
<div class="step">
<h3>Step 6: Registry Update</h3>
<p>Package becomes available for installation worldwide! 🎉</p>
</div>
</div>
</div>
</section>
<!-- Live Demo -->
<section class="section">
<h2 class="section-title">🎮 Publishing Simulator</h2>
<div class="demo-container">
<div class="publish-simulator">
<h3 style="margin-bottom: 15px;">Try Publishing a Package! 🚀</h3>
<label style="display: block; margin-bottom: 10px; font-weight: 600;">Package Name:</label>
<input type="text" class="package-input" id="packageName" placeholder="my-awesome-package" value="my-awesome-package">
<label style="display: block; margin-top: 15px; margin-bottom: 10px; font-weight: 600;">Version:</label>
<input type="text" class="package-input" id="packageVersion" placeholder="1.0.0" value="1.0.0">
<button class="publish-btn" onclick="simulatePublish()">📦 Publish Package</button>
</div>
<div style="margin-top: 30px;">
<h4 style="margin-bottom: 15px;">Quick Demos:</h4>
<button class="demo-button" onclick="simulateSuccess()">
<span>✅</span>
<span>Successful Publish</span>
</button>
<button class="demo-button" onclick="simulateError()">
<span>❌</span>
<span>Name Conflict</span>
</button>
<button class="demo-button" onclick="simulateUpdate()">
<span>🔄</span>
<span>Version Update</span>
</button>
</div>
<div class="terminal" id="terminal">
<div class="terminal-line">
<span class="terminal-prompt">$</span>
<span style="color: var(--text-secondary);"> Ready to publish...</span>
</div>
</div>
</div>
</section>
<!-- Code Breakdown -->
<section class="section">
<h2 class="section-title">💻 Complete Publishing Guide</h2>
<div class="card">
<div class="tabs">
<button class="tab active" onclick="switchTab('setup')">Initial Setup</button>
<button class="tab" onclick="switchTab('first')">First Publish</button>
<button class="tab" onclick="switchTab('update')">Update Package</button>
<button class="tab" onclick="switchTab('scoped')">Scoped Packages</button>
</div>
<div id="setup" class="tab-content active">
<h3 style="color: var(--accent-pink); margin-bottom: 15px;">Initial Setup</h3>
<div class="code-block">
<div class="code-header">
<div class="terminal-dots">
<div class="terminal-dot dot-red"></div>
<div class="terminal-dot dot-yellow"></div>
<div class="terminal-dot dot-green"></div>
</div>
<button class="copy-btn" onclick="copyCode('setup-code')">📋 Copy</button>
</div>
<pre><code id="setup-code"><span class="code-comment"># 1. Create npm account at npmjs.com</span>
<span class="code-comment"># 2. Login via CLI</span>
npm login
<span class="code-comment"># Enter username, password, and email</span>
<span class="code-comment"># 3. Verify login</span>
npm whoami
<span class="code-comment"># 4. Initialize package</span>
npm init
<span class="code-comment"># Or use defaults:</span>
npm init -y</code></pre>
</div>
<div class="success" style="margin-top: 15px;">
<strong>Result:</strong> You're now authenticated and ready to publish!
</div>
</div>
<div id="first" class="tab-content">
<h3 style="color: var(--accent-pink); margin-bottom: 15px;">First Time Publishing</h3>
<div class="code-block">
<div class="code-header">
<div class="terminal-dots">
<div class="terminal-dot dot-red"></div>
<div class="terminal-dot dot-yellow"></div>
<div class="terminal-dot dot-green"></div>
</div>
<button class="copy-btn" onclick="copyCode('first-code')">📋 Copy</button>
</div>
<pre><code id="first-code"><span class="code-comment">// package.json (minimum required)</span>
{
<span class="code-string">"name"</span>: <span class="code-string">"my-awesome-package"</span>,
<span class="code-string">"version"</span>: <span class="code-string">"1.0.0"</span>,
<span class="code-string">"description"</span>: <span class="code-string">"An awesome package"</span>,
<span class="code-string">"main"</span>: <span class="code-string">"index.js"</span>,
<span class="code-string">"author"</span>: <span class="code-string">"Your Name"</span>,
<span class="code-string">"license"</span>: <span class="code-string">"MIT"</span>
}
<span class="code-comment"># Check what will be published</span>
npm pack --dry-run
<span class="code-comment"># Publish to npm</span>
npm publish
<span class="code-comment"># Output:</span>
<span class="code-comment"># + my-awesome-package@1.0.0</span></code></pre>
</div>
<div class="tip" style="margin-top: 15px;">
<strong>Pro Tip:</strong> Use <code>npm pack --dry-run</code> to preview what will be published!
</div>
</div>
<div id="update" class="tab-content">
<h3 style="color: var(--accent-pink); margin-bottom: 15px;">Update Existing Package</h3>
<div class="code-block">
<div class="code-header">
<div class="terminal-dots">
<div class="terminal-dot dot-red"></div>
<div class="terminal-dot dot-yellow"></div>
<div class="terminal-dot dot-green"></div>
</div>
<button class="copy-btn" onclick="copyCode('update-code')">📋 Copy</button>
</div>
<pre><code id="update-code"><span class="code-comment"># Update version (semantic versioning)</span>
<span class="code-comment"># Patch: 1.0.0 → 1.0.1 (bug fixes)</span>
npm version patch
<span class="code-comment"># Minor: 1.0.0 → 1.1.0 (new features, backward compatible)</span>
npm version minor
<span class="code-comment"># Major: 1.0.0 → 2.0.0 (breaking changes)</span>
npm version major
<span class="code-comment"># Publish the update</span>
npm publish
<span class="code-comment"># Tag specific version</span>
npm publish --tag beta</code></pre>
</div>
<div class="info" style="margin-top: 15px;">
<strong>Note:</strong> <code>npm version</code> automatically creates a git commit and tag!
</div>
</div>
<div id="scoped" class="tab-content">
<h3 style="color: var(--accent-pink); margin-bottom: 15px;">Scoped Packages</h3>
<div class="code-block">
<div class="code-header">
<div class="terminal-dots">
<div class="terminal-dot dot-red"></div>
<div class="terminal-dot dot-yellow"></div>
<div class="terminal-dot dot-green"></div>
</div>
<button class="copy-btn" onclick="copyCode('scoped-code')">📋 Copy</button>
</div>
<pre><code id="scoped-code"><span class="code-comment">// package.json with scope</span>
{
<span class="code-string">"name"</span>: <span class="code-string">"@username/my-package"</span>,
<span class="code-string">"version"</span>: <span class="code-string">"1.0.0"</span>
}
<span class="code-comment"># Publish scoped package publicly (free)</span>
npm publish --access public
<span class="code-comment"># Publish scoped package privately (paid)</span>
npm publish --access restricted
<span class="code-comment"># Install scoped package</span>
npm install @username/my-package</code></pre>
</div>
</div>
</div>
</section>
<!-- Common Mistakes -->
<section class="section">
<h2 class="section-title">❌ Common Mistakes</h2>
<div class="card">
<div class="accordion">
<div class="accordion-item">
<div class="accordion-header" onclick="toggleAccordion(this)">
<span><strong>1. Package Name Already Exists</strong></span>
<span class="accordion-icon">▼</span>
</div>
<div class="accordion-content">
<div class="accordion-body">
<div class="warning">
<strong>Problem:</strong> Error: "You do not have permission to publish"
</div>
<div class="success" style="margin-top: 15px;">
<strong>Solution:</strong> Choose a unique name or use scoped packages: <code>@username/package-name</code>
</div>
</div>
</div>
</div>
<div class="accordion-item">
<div class="accordion-header" onclick="toggleAccordion(this)">
<span><strong>2. Not Logged In</strong></span>
<span class="accordion-icon">▼</span>
</div>
<div class="accordion-content">
<div class="accordion-body">
<div class="warning">
<strong>Problem:</strong> Error: "You must be logged in to publish"
</div>
<div class="success" style="margin-top: 15px;">
<strong>Solution:</strong> Run <code>npm login</code> first and verify with <code>npm whoami</code>
</div>
</div>
</div>
</div>
<div class="accordion-item">
<div class="accordion-header" onclick="toggleAccordion(this)">
<span><strong>3. Version Already Published</strong></span>
<span class="accordion-icon">▼</span>
</div>
<div class="accordion-content">
<div class="accordion-body">
<div class="warning">
<strong>Problem:</strong> Error: "Cannot publish over existing version"
</div>
<div class="success" style="margin-top: 15px;">
<strong>Solution:</strong> Update version with <code>npm version patch/minor/major</code>
</div>
</div>
</div>
</div>
<div class="accordion-item">
<div class="accordion-header" onclick="toggleAccordion(this)">
<span><strong>4. Publishing Private Files</strong></span>
<span class="accordion-icon">▼</span>
</div>
<div class="accordion-content">
<div class="accordion-body">
<div class="warning">
<strong>Problem:</strong> Accidentally publishing .env, node_modules, etc.
</div>
<div class="success" style="margin-top: 15px;">
<strong>Solution:</strong> Use <code>.npmignore</code> or <code>files</code> field in package.json
</div>
</div>
</div>
</div>
</div>
</div>
</section>
<!-- Pro Tips -->
<section class="section">
<h2 class="section-title">🚀 Pro Tips</h2>
<div class="card">
<div class="tip">
<strong>Use .npmignore</strong> - Exclude unnecessary files: tests, docs, .env files!
</div>
<div class="tip">
<strong>Add keywords</strong> - Help users discover your package with relevant keywords in package.json!
</div>
<div class="tip">
<strong>Write good README</strong> - Include installation, usage examples, and API documentation!
</div>
<div class="tip">
<strong>Semantic versioning</strong> - Follow semver: MAJOR.MINOR.PATCH (e.g., 1.2.3)!
</div>
<div class="tip">
<strong>Test before publishing</strong> - Use <code>npm link</code> to test locally first!
</div>
<div class="tip">
<strong>Add badges</strong> - Show npm version, downloads, license badges in README!
</div>
<div class="tip">
<strong>Unpublish carefully</strong> - You can only unpublish within 72 hours: <code>npm unpublish package-name@version</code>
</div>
</div>
</section>
<!-- Quiz -->
<section class="section">
<h2 class="section-title">🎯 Knowledge Check Quiz</h2>
<div class="quiz-container">
<p style="margin-bottom: 30px; font-size: 1.1rem;">Test your understanding! 🧠</p>
<div class="quiz-question">
<h3>Question 1: What must you do before npm publish?</h3>
<div class="quiz-options">
<div class="quiz-option" onclick="checkAnswer(this, false, 1)">A) Install all dependencies</div>
<div class="quiz-option" onclick="checkAnswer(this, true, 1)">B) Login with npm login</div>
<div class="quiz-option" onclick="checkAnswer(this, false, 1)">C) Create a GitHub repo</div>
</div>
<div class="quiz-feedback" id="feedback1"></div>
</div>
<div class="quiz-question">
<h3>Question 2: How do you update to version 1.0.1?</h3>
<div class="quiz-options">
<div class="quiz-option" onclick="checkAnswer(this, false, 2)">A) npm version major</div>
<div class="quiz-option" onclick="checkAnswer(this, true, 2)">B) npm version patch</div>
<div class="quiz-option" onclick="checkAnswer(this, false, 2)">C) npm version minor</div>
</div>
<div class="quiz-feedback" id="feedback2"></div>
</div>
<div class="quiz-question">
<h3>Question 3: What's a scoped package?</h3>
<div class="quiz-options">
<div class="quiz-option" onclick="checkAnswer(this, false, 3)">A) A private package only</div>
<div class="quiz-option" onclick="checkAnswer(this, true, 3)">B) A package with @username/name format</div>
<div class="quiz-option" onclick="checkAnswer(this, false, 3)">C) A package with limited scope</div>
</div>
<div class="quiz-feedback" id="feedback3"></div>
</div>
<div id="quizScore" style="margin-top: 30px; padding: 20px; background: var(--bg-secondary); border-radius: 12px; display: none;">
<h3 style="color: var(--accent-green); font-size: 1.5rem;">🎉 Quiz Complete!</h3>
<p id="scoreText" style="font-size: 1.2rem; margin-top: 10px;"></p>
</div>
</div>
</section>
<!-- Summary Card -->
<section class="section">
<h2 class="section-title">📚 Quick Reference</h2>
<div class="cheat-sheet">
<h3 style="margin-bottom: 20px; font-size: 2rem;">npm publish Cheat Sheet! 🔖</h3>
<div class="cheat-grid">
<div class="cheat-item">
<h4>🔐 Login</h4>
<p><code>npm login</code></p>
<p style="font-size: 0.85rem; margin-top: 5px;">Authenticate first</p>
</div>
<div class="cheat-item">
<h4>📦 Publish</h4>
<p><code>npm publish</code></p>
<p style="font-size: 0.85rem; margin-top: 5px;">Upload package</p>
</div>
<div class="cheat-item">
<h4>🔄 Update Patch</h4>
<p><code>npm version patch</code></p>
<p style="font-size: 0.85rem; margin-top: 5px;">Bug fixes (1.0.1)</p>
</div>
<div class="cheat-item">
<h4>✨ Update Minor</h4>
<p><code>npm version minor</code></p>
<p style="font-size: 0.85rem; margin-top: 5px;">New features (1.1.0)</p>
</div>
<div class="cheat-item">
<h4>💥 Update Major</h4>
<p><code>npm version major</code></p>
<p style="font-size: 0.85rem; margin-top: 5px;">Breaking (2.0.0)</p>
</div>
<div class="cheat-item">
<h4>👤 Scoped</h4>
<p><code>npm publish --access public</code></p>
<p style="font-size: 0.85rem; margin-top: 5px;">@username/pkg</p>
</div>
<div class="cheat-item">
<h4>🔍 Preview</h4>
<p><code>npm pack --dry-run</code></p>
<p style="font-size: 0.85rem; margin-top: 5px;">Check files</p>
</div>
<div class="cheat-item">
<h4>❌ Unpublish</h4>
<p><code>npm unpublish pkg@version</code></p>
<p style="font-size: 0.85rem; margin-top: 5px;">Within 72h</p>
</div>
</div>
</div>
</section>
<!-- Footer -->
<div class="footer">
<h2 style="font-size: 2rem; margin-bottom: 20px; color: var(--accent-pink);">🎉 Congratulations!</h2>
<p style="font-size: 1.2rem; margin-bottom: 20px;">You now understand <strong>npm publish</strong>! 🚀</p>
<div style="margin: 30px 0;">
<span class="badge">📦 Package Publisher</span>
<span class="badge">🌍 Open Source Hero</span>
<span class="badge">🚀 npm Expert</span>
</div>
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