Code-Knoten verstehen

• •Keine besonderen Voraussetzungen, sofort nach Import nutzbar

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        "content": "## 🎯 WORKFLOW PURPOSE\nThis workflow demonstrates practical Code node usage for:\n\n• **Data filtering & transformation**\n• **Statistical calculations**  \n• **Formatting for external systems**\n• **Real-world business scenarios**\n\n💡 Perfect for learning JavaScript data manipulation in n8n!\n\nAuthor : **David Olusola**\n\n🚀 **n8n Coaching**\nUnlock the full potential of n8n with personalized, one-on-one coaching. Whether you're just getting started or need help solving a specific challenge, I’ll guide you step-by-step so you can build confidently and efficiently.\n👉 [Book Coaching Session](mailto:david@daexai.com?subject=n8n%20Coaching%20Request)\n\n **n8n Consulting**\nHave a complex automation project, unique integration needs, or want a custom workflow built from scratch? Let’s collaborate to design and implement a robust solution tailored to your business.\n📩 [Inquire About Consulting Services](mailto:david@daexai.com?subject=n8n%20Consultation%20Request)\n"
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        "content": "## 🔧 CODE NODE BASICS\n\n**Key Points:**\n• Access input data via `items[0].json`\n• Always return array of objects\n• Use `.map()` to create multiple outputs\n• Return `[{ json: data }]` format\n\n**Common Patterns:**\n```javascript\n// Single output\nreturn [{ json: result }];\n\n// Multiple outputs\nreturn array.map(item => ({ json: item }));\n```"
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        "content": "## 📊 EXAMPLE 1: FILTER & TRANSFORM\n\n**What it does:**\n• Filters users over 18 years old\n• Adds calculated bonus field (10% of salary)\n• Creates formatted email addresses\n• Outputs each user as separate item\n\n**Use cases:**\n• Lead qualification\n• Customer segmentation\n• Data enrichment"
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        "content": "## 📈 EXAMPLE 2: CALCULATE STATS\n\n**What it does:**\n• Aggregates team data into statistics\n• Calculates averages, totals, distributions\n• Creates single summary object\n\n**Use cases:**\n• Dashboard data preparation\n• Report generation\n• KPI calculations\n• Business intelligence"
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        "content": "## 🔄 EXAMPLE 3: FORMAT FOR EXPORT\n\n**What it does:**\n• Formats data for multiple output types\n• Creates CSV, email lists, API payloads\n• Adds metadata and timestamps\n\n**Use cases:**\n• API integrations\n• Email marketing prep\n• Data export functions\n• Multi-format reporting"
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        "content": "## 🚀 QUICK START GUIDE\n\n**1. Click \"Test workflow\" to run**\n**2. Check each Code node's output**\n**3. Edit JavaScript code to experiment**\n**4. Copy patterns for your own workflows**\n\n**Pro Tips:**\n• Use `console.log()` for debugging\n• Test with small datasets first\n• Always handle edge cases\n• Return proper n8n format"
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              "value": "user_data"
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              "name": "usersJson",
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              "value": "[{\"name\": \"Alice Johnson\", \"age\": 28, \"email\": \"alice@example.com\", \"role\": \"developer\", \"salary\": 75000}, {\"name\": \"Bob Smith\", \"age\": 17, \"email\": \"bob@example.com\", \"role\": \"intern\", \"salary\": 25000}, {\"name\": \"Charlie Brown\", \"age\": 35, \"email\": \"charlie@example.com\", \"role\": \"manager\", \"salary\": 95000}, {\"name\": \"Diana Ross\", \"age\": 22, \"email\": \"diana@example.com\", \"role\": \"designer\", \"salary\": 60000}]"
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        "jsCode": "// EXAMPLE 1: Filter adults (age > 18) and add bonus field\nconst users = JSON.parse(items[0].json.usersJson);\n\n// Filter users over 18 and add calculated bonus\nconst adults = users\n  .filter(user => user.age > 18)\n  .map(user => ({\n    ...user,\n    bonus: user.salary * 0.1, // 10% bonus\n    fullEmail: `${user.name} <${user.email}>`,\n    isEligible: true\n  }));\n\n// Return each user as separate item for n8n\nreturn adults.map(user => ({ json: user }));"
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        "jsCode": "// EXAMPLE 2: Aggregate data - calculate team statistics\nconst users = JSON.parse(items[0].json.usersJson);\n\n// Calculate team stats\nconst stats = {\n  totalEmployees: users.length,\n  averageAge: users.reduce((sum, user) => sum + user.age, 0) / users.length,\n  totalSalary: users.reduce((sum, user) => sum + user.salary, 0),\n  averageSalary: users.reduce((sum, user) => sum + user.salary, 0) / users.length,\n  roleDistribution: users.reduce((acc, user) => {\n    acc[user.role] = (acc[user.role] || 0) + 1;\n    return acc;\n  }, {}),\n  minAge: Math.min(...users.map(u => u.age)),\n  maxAge: Math.max(...users.map(u => u.age)),\n  eligibleForBonus: users.filter(u => u.age > 18).length\n};\n\n// Return single item with all statistics\nreturn [{ json: stats }];"
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        "jsCode": "// EXAMPLE 3: Format data for external API or email\nconst users = JSON.parse(items[0].json.usersJson);\n\n// Create formatted output for different use cases\nconst emailList = users.map(user => user.email).join(', ');\nconst csvFormat = users.map(user => \n  `${user.name},${user.age},${user.email},${user.role},${user.salary}`\n).join('\\n');\n\n// Create summary report\nconst report = {\n  reportDate: new Date().toISOString(),\n  teamOverview: {\n    totalMembers: users.length,\n    departments: [...new Set(users.map(u => u.role))],\n    payrollTotal: users.reduce((sum, u) => sum + u.salary, 0)\n  },\n  formattedData: {\n    emailList,\n    csvFormat,\n    jsonForApi: users.map(user => ({\n      id: user.name.toLowerCase().replace(' ', '_'),\n      displayName: user.name,\n      contact: user.email,\n      position: user.role,\n      compensation: user.salary,\n      eligibleForVoting: user.age >= 18\n    }))\n  }\n};\n\nreturn [{ json: report }];"
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